| Decision | Reason | Preview |
|---|---|---|
| Skip | No changes needed | Multiple Choice
True or false:
In any simple graph with $n$ vertices, at least $\dfrac{n}{2}$ edges are needed to guarantee that no vert
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| Skip | No changes needed | Question
The perimeter of an equilateral triangle is $123$ cm.
What is the length of one side?
Answer:
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| Review | AI classifier and verifier disagreed | Multiple Choice
True or false:
$0.005$ kL + $50000$ mL is greater than $0.1$ m$^3$.
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| Skip | No changes needed | Multiple Choice
The system of symbols used to represent sets is called set $\fbox{\phantom{4000000000}}$
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| Localize | AU/British spelling (e.g. colour→color, centre→center) | Question
Convert $3.75$ litres to millilitres.
Answer:
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| Localize | AU/British spelling (e.g. colour→color, centre→center) | Multiple Choice
Which of the following is a unit of length in the metric system?
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| Skip | No changes needed | Multiple Choice
Determine the general term formula for the given arithmetic sequence.
$6,2,-2,-6,\dots$
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| Localize | AU/British spelling (e.g. colour→color, centre→center) | Multiple Choice
Which asset is likely to depreciate the fastest?
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| Skip | No changes needed | Question
Find the volume of the composite solid shown below.
Image description: A cylinder with radius $5$ cm and height $18$ c
Answer:
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| Localize | AU/British spelling (e.g. colour→color, centre→center) | Subtopic: Measures of Centre |
| Localize | AU/British spelling (e.g. colour→color, centre→center) | Question
How can subgraphs help analyse specific components of a larger graph?
Answer:
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| Localize | AU/British spelling (e.g. colour→color, centre→center) | Multiple Choice
An object moves in a straight line and its displacement function is given by $s(t)=t^2-2t-5$ metres where time $t$ is in
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| Skip | No changes needed | Multiple Choice
Which recurrence relation represents a geometric sequence with first term $5$ and common ratio $3$?
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| Skip | Metric units — keep as-is for pedagogy | Question
How many cubic millimetres are there in $10$ cubic centimetres ?
Answer:
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| Localize | AU/British spelling (e.g. colour→color, centre→center) | Question
What makes $r^2$ represent the squared radius in the circle $(x-h)^2+(y-k)^2=r^2$?
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| Skip | No changes needed | Question
Show why the volume of a $2$ cm $\times$ $2$ cm $\times$ $8$ cm prism is the same as the volume of two $2$ cm $\times$ $
Answer:
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| Localize | AU/British spelling (e.g. colour→color, centre→center) | Multiple Choice
To find the next shape in a growing pattern, look for the $\fbox{\phantom{4000000000}}$ in how the shapes grow.
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| Skip | No changes needed | Question
How do you know $y=3(2^x)+2$ has asymptote $y=2$?
Hint: Constant term $2$ is asymptote
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| Skip | No changes needed | Question
How do you know a shape with base area $42$ cm$^2$ and height $4$ cm cannot have a volume of $200$ cm$^3$?
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| Skip | No changes needed | Question
A spinner has $8$ equal sections numbered $1$ to $8$.
A card is drawn from a deck containing $10$ cards numbered $1$ to
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| Skip | No changes needed | Question
Why can an equation containing a term with an even exponent have two real solutions?
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| Skip | No changes needed | Question
What is the next term in the sequence?
$10.5, 25.5, 54.5, 97.5, \dots$
Answer:
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| Localize | AU/British spelling (e.g. colour→color, centre→center) | Multiple Choice
The $\fbox{\phantom{4000000000}}$ of rotation refers to how many degrees an object is turned.
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| Localize | AU/British spelling (e.g. colour→color, centre→center) | Question
How many cubic metres are there in $7$ kL?
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| Skip | No changes needed | Question
Let $X$ be a binomial random variable with variables $n=5000$ and $p=0.67$.
Using the normal approximation of the binom
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| Skip | No changes needed | Question
Express $\log_{5}{3}+\log_{5}{2}+\log_{5}{6}+\log_5{1}$ as a single logarithm.
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| Skip | No changes needed | Question
Why can’t a shape with $5$ corners be a square?
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| Skip | No changes needed | Question
What is the next term in the given sequence below?
$-10, -6, -2, \cdots$
Answer:
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| Localize | School terminology (e.g. Year 7, maths, term dates) | Question
A student picked up $12$ pieces of rubbish on Monday and $25$ pieces on Tuesday.
How many pieces of rubbish did they pic
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| Skip | No changes needed | Question
What is $43.8-13.5$ ?
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| Skip | No changes needed | Multiple Choice
Fill in the blank.
The shortest distance along a meridian between two points $A$ and $B$ on the Earth's surface is given
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| Skip | No changes needed | Multiple Choice
True or false:
$0.6$ is smaller than $6\%$
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| Skip | No changes needed | Question
Why do we use powers in the rule $T_n = a \times r^{n-1}$ for a geometric sequence?
Answer:
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| Skip | No changes needed | Skill: Rounding decimals by decimal places |
| Skip | No changes needed | Question
Show why $\{1, 2\} \cup \{2, 3\} = \{1, 2, 3\}$.
Hint: Consider union properties
Answer:
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| Localize | AU/British spelling (e.g. colour→color, centre→center) | Multiple Choice
True or false:
The displacement of air particles in a sound wave is given by $y = 10\cos\left(\frac{\pi}{5}t\right)$, w
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| Skip | No changes needed | Multiple Choice
Which option has the greater total capacity?
A: $10$ test tubes of $75$ mL and $1$ large measuring cup of $2.5$ L
B: $4$
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| Skip | No changes needed | Question
Explain why $0.7 \times 0.5$ equals $0.35$.
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| Skip | No changes needed | Question
In any right-angled triangle, why is the sine of one acute angle equal to the cosine of the other?
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| Skip | No changes needed | Question
If $2x^2 + 3x + k$ and $2x^2 + ax + 5$ are equal, why can you find $a$ and $k$ by comparing their coefficients instead o
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| Review | AI was not confident enough to classify | Question
A $10$ cm by $18$ cm photo is placed in a frame that is $4$ cm wide on all sides.
What is the outer perimeter of the fr
Hint: It may help to draw a diagram of the photo and frame.
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| Skip | No changes needed | Question
Show why doubling the number of times interest is compounded in a year increases the amount.
Answer:
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| Skip | No changes needed | Question
Explain why the graph of a geometric sequence $a_n = a_1 r^{n-1}$ curves upwards if $a_1 > 0$ and the common ratio $r >
Hint: Consider ratio effects
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| Skip | No changes needed | Question
Express $15$ g in kilograms.
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| Localize | School terminology (e.g. Year 7, maths, term dates) | Multiple Choice
Write $ 529630$ in words.
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| Skip | No changes needed | Question
A die is rolled, and a coin is flipped. The outcome of each is recorded.
How many elements are in the sample space?
Answer:
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| Localize | AU/British spelling (e.g. colour→color, centre→center) | Multiple Choice
Area is measured in $\fbox{\phantom{4000000000}}$ units, such as square centimetres or square metres.
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| Localize | AU/British spelling (e.g. colour→color, centre→center) | Multiple Choice
The sample variance ($s^2$) for a set of measurements is calculated to be $2.25$ m$^2$.
What is the sample standard devi
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| Skip | No changes needed | Question
How would you represent $2 \frac{2}{5}$ using rectangles?
Answer:
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| Localize | Units in math expressions — needs careful conversion | Multiple Choice
What are the correct dimensions of a rectangle where the numerical value of its perimeter equals twice its area?
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| Localize | Units in math expressions — needs careful conversion | Question
A bottle contains $94$ mL of juice.
If $7$ mL is poured into a glass, how much juice is left in the bottle?
Answer:
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| Skip | No changes needed | Multiple Choice
Fill in the blank:
If the $n^\text{th}$ term of a geometric sequence is $6(-2)^{n-1}$, the common ratio is $[?]$.
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| Skip | No changes needed | Multiple Choice
What is the missing term in the given equation?
$x^3-2y^3+[?]=x(x^2+y)-2y^3$
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| Localize | Units in math expressions — needs careful conversion | Question
The coordinates of point $A$ and point $B$ are $(15^\circ N,50^\circ E)$ and $(15^\circ N, 90^\circ E)$ respectively.
Fi
Hint: Take the Earth's radius to be $6371$ km
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| Review | AI was not confident enough to classify | Question
Explain why a triangle with sides $5$ cm, $7$ cm, and an included angle $60^\circ$ has an area of approximately $15.2$ c
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| Skip | No changes needed | Question
Why is the year split into four seasons?
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| Skip | No changes needed | Question
Find the $11^{th}$ term of the geometric sequence $2,2\sqrt{2},4,\dots$.
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| Skip | No changes needed | Question
In a triangle, two adjacent sides are $15$ cm and $18$ cm long with an obtuse angle, $x$, between them.
If the area is $
Answer:
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| Localize | Units in math expressions — needs careful conversion | Question
The minute hand of a watch is $15$ cm long.
How far does its tip move in $40$ minutes?
Answer:
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| Skip | No changes needed | Question
What is the next term in the given sequence below?
$309, 301, 293, \dots$
Answer:
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| Skip | No changes needed | Question
What is $5028+1230-1675$ ?
Answer:
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| Skip | No changes needed | Question
How do you know that halving the diameter halves the circumference?
Use an example to explain.
Answer:
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| Review | AI was not confident enough to classify | Multiple Choice
Identify the base in $k^m$.
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| Skip | No changes needed | Skill: Identifying changes to the critical path due to crashing |
| Skip | No changes needed | Question
What is the missing term in the given sequence?
$1, 0.75, [?], 0.25, 0$
Answer:
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| Localize | Answers depend on AU units — must update together | Multiple Choice
What is the seventh month of the year?
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| Skip | No changes needed | Question
Explain why increasing the rate increases the total simple interest using an example.
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| Skip | No changes needed | Question
Convert $2.6$ L into mL.
Answer:
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| Skip | No changes needed | Multiple Choice
Which of the following correctly splits the middle term in $x^2 + 5x +6$ so it can be factorised by grouping?
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| Skip | No changes needed | Question
The perimeter of a regular octagon is $904$ cm.
What is the length of its side?
Answer:
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| Localize | AU/British spelling (e.g. colour→color, centre→center) | Question
Why do you separate numerical from categorical data?
Answer:
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| Localize | AU/British spelling (e.g. colour→color, centre→center) | Multiple Choice
True or false:
A small circle can pass through the centre of the Earth.
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| Skip | Metric units — keep as-is for pedagogy | Question
Find the density of an ice cube of mass $2$ g and volume $0.27$ cm$^3$.
Answer:
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| Skip | No changes needed | Multiple Choice
Determine the formula for the arithmetic sequence $t_n$ whose fourth term is $1$ and whose fifteenth term is $-32$.
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| Skip | No changes needed | Question
What is the next term in the sequence?
$1,10,100,1000,\dots$
Answer:
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| Skip | No changes needed | Question
Find the volume of a piece of metal with a mass of $100$ g and density of $1.80$ g/cm$^3.$
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| Skip | No changes needed | Question
The $8$th term in a pattern is $9.2136$. Each term increases by $0.8012$.
What is the first term?
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| Localize | Units in math expressions — needs careful conversion | Question
Find the perimeter of a rectangular block of land that is $2$ km long and $0.6$ km wide.
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| Skip | No changes needed | Question
Find the $18$th term in the arithmetic sequence $-2,-7,-12,-17,. . . $
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| Skip | No changes needed | Question
Fill in the blank:
$4.5$ m$^2 = [?] $ cm$^2$
Answer:
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| Skip | No changes needed | Question
Determine the next term in the sequence $ \frac{2}{3}, \frac{5}{3}, \frac{8}{3}, \frac{11}{3}, [?]$.
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| Skip | No changes needed | Question
Why do we divide annual interest rate by number of periods?
Hint: Divide the annual rate by the number of periods in a year.
Answer:
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| Skip | No changes needed | Question
What is the next term in the sequence ?
$-3, 9, -27, \dots$
Answer:
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| Skip | No changes needed | Question
What is the missing term in the given sequence?
$-3.75$, $-3.45$, $[?]$, $-2.85$
Answer:
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| Skip | No changes needed | Question
Fill in the blank:
$15600$ kilograms $+[?]$ megagrams $=17900$ kilograms
Answer:
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| Skip | No changes needed | Question
Consider the sequence where $n^2$ is the rule and $n$ is the position of the term.
If the $4$th term is $16$, which ter
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| Skip | No changes needed | Multiple Choice
Which of the following is not true with respect to the interest rate of a fixed interest rate personal loan?
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| Skip | No changes needed | Question
How do you check if a number can be shared equally into groups of $5$ and groups of $10$?
Why does this work?
Answer:
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| Localize | AU/British spelling (e.g. colour→color, centre→center) | Question
Find the coordinates of the centre of the rectangular hyperbola $y = \frac{-3}{2x+1} + 2$.
What is the sum of these coor
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| Skip | No changes needed | Question
Find the area of a circle whose circumference is $44$ cm.
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| Skip | No changes needed | Question
What is $42 \div 6$ ?
Answer:
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| Localize | AU/British spelling (e.g. colour→color, centre→center) | Question
After $500$ rotations, a wheel has travelled $1.06$ km.
Find the diameter of the wheel in metres.
Answer:
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| Skip | No changes needed | Question
Bernadette's invests $\$10000$ for $n$ years on a $6.8\%$ interest rate compounded annually.
The recurrence relation for
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| Skip | No changes needed | Question
What is the $7^\text{th}$ term in Lucas sequence?
Answer:
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| Skip | No changes needed | Question
Find the total surface area of a hemisphere of radius $8$ cm.
Hint: Total surface area $=$ Curved surface area $+$ Base area
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| Localize | AU/British spelling (e.g. colour→color, centre→center) | Question
A swimming pool has a capacity of $120$ kilolitres.
How many litres is this?
Answer:
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| Skip | No changes needed | Skill: Identifying real life events that can't occur together |
| Localize | AU/British spelling (e.g. colour→color, centre→center) | Multiple Choice
The thickness of a piece of paper is approximately $1$ mm.
If a book contains $500$ pages, what is the most appropriate
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| Skip | No changes needed | Question
Find the area of a parallelogram with a height of $3$ cm and a base twice the length of its height.
Answer:
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| Localize | AU/British spelling (e.g. colour→color, centre→center) | Question
Why might different points reveal important polynomial features?
Hint: Test multiple points to observe patterns.
Answer:
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| Localize | AU/British spelling (e.g. colour→color, centre→center) | Question
A swimmer moves at a speed of $2.5$ metres per second.
Convert this speed to kilometres per hour.
Answer:
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| Localize | AU/British spelling (e.g. colour→color, centre→center) | Question
How can choosing the right unit of volume make calculations easier?
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| Skip | No changes needed | Question
What is $13 \times 10$?
Answer:
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| Skip | No changes needed | Question
Divide the numbers:
$235689\div19$
Answer:
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| Skip | Metric units — keep as-is for pedagogy | Question
A tunnel runs for $46$ km on a bearing of $330^\circ \text{T}$.
How far north is the end of the tunnel from its startin
Hint: Use trigonometry to determine the distance travelled.
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| Localize | AU/British spelling (e.g. colour→color, centre→center) | Question
How does understanding the unit circle relate to predicting sine curve behaviour?
Hint: Use the y-coordinate of points on the unit circle.
Answer:
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| Skip | No changes needed | Question
Write the second smallest of the following fractions.
$\frac{11}{20}, \frac{9}{16}, \frac{5}{8}, \frac{7}{12}, \frac{13}
Answer:
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| Skip | No changes needed | Multiple Choice
There are $60$ minutes in one degree.
An angle measures $78.833^\circ$.
Convert this to degrees and minutes, rounding th
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| Skip | No changes needed | Question
A sequence increases by $7$ each time.
If the $10$th term is $200$, what is the value of the $2$nd term?
Answer:
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| Localize | AU/British spelling (e.g. colour→color, centre→center) | Question
A water tank fills at a rate of $120$ litres per minute.
What is this rate in litres per hour?
Answer:
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| Localize | AU/British spelling (e.g. colour→color, centre→center) | Question
Convert $1$ cubic metre to litres.
Answer:
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| Skip | No changes needed | Question
The number of leaves, $N$, on a tree after $t$ years is given by $N(t) = 20000t + t^5 - 21t^2$.
Given that $N'(t) = 200
Answer:
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| Localize | Unit references in text (e.g. kilometres→miles) | Multiple Choice
Which of the following is an example of categorical data?
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| Skip | No changes needed | Multiple Choice
In an equilateral triangle $ABC$ with side length $10$ cm, the angle bisector from $A$ meets $BC$ at point $D$.
What is
Options:
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| Skip | No changes needed | Skill: Calculating the times tables up to $15$ |
| Skip | Metric units — keep as-is for pedagogy | Multiple Choice
True of false:
A parallelogram with a perpendicular height of $2$ cm and a base length $5$ cm has an area of $10$ cm$^2$
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| Skip | No changes needed | Multiple Choice
Which of these can't be represented by a binomial random variable?
Options:
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| Skip | No changes needed | Multiple Choice
Which operation would turn $6m$ into a like term with $-2mn$?
Options:
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| Localize | AU/British spelling (e.g. colour→color, centre→center) | Question
The cost of a $2$ litre can of paint is $\$6$.
What will the cost of $24$ litres of paint be?
Answer:
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| Skip | No changes needed | Question
Why must we consider time period in compound curves?
Hint: Think about how time influences the overall growth in exponential situations.
Answer:
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| Skip | No changes needed | Multiple Choice
A positive gradient indicates an $\fbox{\phantom{4000000000}}$ line, while a negative gradient indicates a downward sl
Options:
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| Localize | Units in math expressions — needs careful conversion | Question
A wizard wears a conical hat with a circular base of radius $3$ cm and a height of $4$ cm.
What is the curved surface a
Answer:
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| Skip | No changes needed | Question
A boat sails $12$ km on a bearing of $126^\circ \text{T}$, then $68$ km on a bearing of $216^\circ \text{T}$.
Find the
Answer:
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| Skip | No changes needed | Subtopic: Naming Numbers |
| Localize | AU/British spelling (e.g. colour→color, centre→center) | Question
What makes tree diagrams useful for multi-step probability problems?
Hint: Each branch represents a possible path for events.
Answer:
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| Skip | No changes needed | Multiple Choice
What is the coefficient of the $x^2$ term in the expansion of the polynomial $P(x) = (4x^2 - 3)(x+2)$?
Options:
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| Localize | AU/British spelling (e.g. colour→color, centre→center) | Multiple Choice
Which of the following statements best describes the behaviour of the graph of $y = \cos(x)$ over the interval $0^\circ
Options:
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| Skip | No changes needed | Multiple Choice
Fill in the blank:
Co-interior angles are always $[?]$.
Options:
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| Localize | AU/British spelling (e.g. colour→color, centre→center) | Question
A rectangular garden has a length of $4\sqrt{3}$ metres.
The area of the garden is $24\sqrt{3}$ square metres.
Find the
Answer:
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| Localize | AU/British spelling (e.g. colour→color, centre→center) | Question
A right circular cylinder has height equal to its base radius. Point $V$ lies halfway up the side, directly above a poin
Answer:
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| Localize | AU/British spelling (e.g. colour→color, centre→center) | Question
Why does a frequency table help organise data into categories?
Hint: Think about how categories make data easier to analyse.
Answer:
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| Review | AI was not confident enough to classify | Question
An additional monthly payment of $\$1000$ is being made on a sum of $\$500$, initially invested at $5.5\%$ per annum, co
Answer:
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| Skip | No changes needed | Question
Convert $0.075$ cm$^3$ to mm$^3$.
Answer:
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| Skip | No changes needed | Multiple Choice
Consider the function $h(x) = \sqrt{4-x^2}$ with domain $[-2, 2]$.
Is this function one-to-one or many-to-one?
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| Skip | No changes needed | Question
Explain why $A=P(1+\frac{R}{n})^{nt}$ calculates the total amount
Hint: $nt$ total compounding periods
Answer:
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| Localize | AU/British spelling (e.g. colour→color, centre→center) | Question
The highest score on a maths test is $95$ and the lowest is $60$.
What is the range?
Answer:
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| Skip | No changes needed | Question
A student says the only solution to $\tan^2 x = 1$ between $0^\circ$ and $360^\circ$ is $x = 45^\circ$.
Explain why this
Answer:
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| Localize | AU/British spelling (e.g. colour→color, centre→center) | Multiple Choice
Fill in the blank:
The highest or lowest point on the graph of a parabola is called the $[?]$.
Options:
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| Skip | No changes needed | Question
Find the next term in the given sequence.
$ 0.02, 0.04, 0.06,\dots$
Answer:
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| Skip | No changes needed | Skill: Understanding inverse matrices |
| Localize | AU/British spelling (e.g. colour→color, centre→center) | Question
A random survey of $500$ people was conducted, and their responses recorded, with $369$ people agreeing that maths was t
Answer:
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| Skip | No changes needed | Question
How many mL are there in $0.1$ L ?
Answer:
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| Skip | No changes needed | Multiple Choice
In Melbourne, $120$ schools are randomly surveyed to study the effects of remote learning.
Which group is the population
Options:
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| Skip | No changes needed | Multiple Choice
A graph with $4$ vertices, $6$ edges and $5$ faces is a connected graph.
Options:
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| Skip | No changes needed | Question
In a number pattern, each term is given by the rule: $\text{term} = 6 - 2n$, where $n$ is the position in the pattern.
W
Answer:
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| Skip | Metric units — keep as-is for pedagogy | Multiple Choice
True or false:
Shape A has side lengths $4$ cm and $8$ cm.
Shape B has side lengths $5$ cm and $8$ cm.
Shape B could be
Options:
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| Localize | AU/British spelling (e.g. colour→color, centre→center) | Multiple Choice
Which of the following pairs of variables is not suitable for a scatterplot?
Options:
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| Skip | No changes needed | Question
The lines $y = (k - 2)x + (3k + 1)$ and $y = (k + 1)x + (k - 5)$ intersect at $x = 1$.
Find the value of $k$.
Answer:
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| Skip | No changes needed | Multiple Choice
Find the general term of the arithmetic sequence.
$ \frac{1}{2}, 1, \frac{3}{2}, 2, \dots $
Options:
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| Localize | Units in math expressions — needs careful conversion | Question
What is the distance along $26^\circ$N between ($26^\circ$N, $150^\circ$W) and ($26^\circ$N, $112^\circ$W), rounded to t
Hint: Take the Earth's radius to be $6371$ km
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| Localize | Units in math expressions — needs careful conversion | Question
A statue casts a $650.40$ cm shadow. A $102.36$ cm garden fence nearby casts a $68.24$ cm shadow.
How tall is the statue
Answer:
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| Localize | Units in math expressions — needs careful conversion | Multiple Choice
Fill in the blank:
$10$ nanometres $=[?]$ metres
Options:
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| Localize | Units in math expressions — needs careful conversion | Multiple Choice
Drivers must travel slower than $40$ km/h in a certain zone.
Which inequality represents this if $v$ is the car's speed
Options:
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| Localize | AU/British spelling (e.g. colour→color, centre→center) | Question
Why is the radius one unit for a unit circle?
Answer:
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| Skip | Metric units — keep as-is for pedagogy | Question
The density $D$ of a metal block varies inversely with its volume $V$ when mass is fixed.
When the volume is $4.8$ cm$^
Answer:
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| Localize | Units in math expressions — needs careful conversion | Question
What makes height numerical data?
Answer:
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| Localize | AU/British spelling (e.g. colour→color, centre→center) | Multiple Choice
The SI base unit for length is the metre (m).
Which of these is a derived SI unit for area?
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| Skip | No changes needed | Question
A box has a volume of $2$ m$^3$.
How many smaller boxes with a volume of $4000$ cm$^3$ can fit inside it?
Answer:
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| Localize | AU/British spelling (e.g. colour→color, centre→center) | Multiple Choice
Which of the following is the general equation of a semicircle with a centre at the origin and radius $r$ units?
Options:
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| Skip | No changes needed | Question
Explain why a parallelogram with base $3$ cm and perpendicular height $6$ cm cannot have an area of $9$ cm$^2$.
Answer:
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| Skip | No changes needed | Multiple Choice
At which points do the equations $y=-2x^2+1$ and $y=x$ intersect?
Options:
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| Skip | No changes needed | Multiple Choice
The value of an investment triples after $x$ years at an interest rate of $r\%$ per year, compounded annually.
The same
Options:
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| Skip | No changes needed | Multiple Choice
Andrew wants to take a loan of $\$20000$ from a bank. He has been provided two loan options in that bank:
Loan A $:4\%$
Options:
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| Review | AI was not confident enough to classify | Question
Find the circumference of a circle with a radius of $4.5$ cm.
Answer:
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| Skip | No changes needed | Question
How does finding $100\%$ relate to understanding percentage change?
Answer:
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| Skip | No changes needed | Question
Explain why the $3$rd term in a sequence with recurrence relation $V_0 = 15$, $V_{n+1} = V_n - 4$ is positive.
Hint: Start at $15$, subtract $4$ twice
Answer:
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| Skip | No changes needed | Question
An amount of money was invested at an $11\%$ simple interest rate per year. It grew to $\$5988$ in $2$ years and $3$ mon
Answer:
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| Skip | No changes needed | Question
Show why doubling the diameter doubles the circumference of a circle.
Use an example to explain.
Answer:
|
| Skip | Metric units — keep as-is for pedagogy | Question
Calculate $x + y + z$ by simplifying the ratio of the given quantities, ensuring all values are in grams:
$0.64$ kg to $
Answer:
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| Skip | No changes needed | Question
Explain why the next term in the sequence $5, 15, 25...$ cannot be $45$
Hint: Apply arithmetic pattern
Answer:
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| Localize | AU/British spelling (e.g. colour→color, centre→center) | Multiple Choice
The volume of water $(V)$ in a container increases by a factor of $2$ every hour $(t)$.
If the container initially has $
Options:
|
| Review | AI classifier and verifier disagreed | Question
It is observed that $20\%$ of cars entering a car park are red.
What is the probability that the next three cars enterin
Answer:
|
| Localize | AU/British spelling (e.g. colour→color, centre→center) | Question
Why do grams change to kilograms the same way millilitres change to litres?
Answer:
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| Skip | No changes needed | Question
Bernadette's invests $\$10000$ for $n$ years on a $6.8\%$ interest rate compounded annually.
The recurrence relation for
Answer:
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| Skip | No changes needed | Question
Find the missing term in the sequence.
$0.010, 0.030, 0.050, [?], 0.090, 0.110$
Answer:
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| Skip | No changes needed | Question
Explain why $p_{7}=-3$ if $p_{1}=-3$ and $p_{n+1}=-p_{n}$
Hint: Track term alternation
Answer:
|
| Localize | AU/British spelling (e.g. colour→color, centre→center) | Multiple Choice
True or false:
The centre of the rectangular hyperbola $y=\frac{2}{x-1}+1$ is $(1,1)$.
Options:
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| Skip | No changes needed | Question
In $\triangle PQR$, $PQ = 152$ cm, $QR = 207 $ cm, $\angle QRP = 36^\circ$ and $\angle PQR = 112^\circ$.
Find the lengt
Answer:
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| Skip | No changes needed | Question
By the SAS congruency rule, $\Delta ABC \cong \Delta PQR$.
For $\angle A=30^\circ$, $\overline{AB}=15$ cm and $\overlin
|
| Skip | No changes needed | Multiple Choice
A period of twelve months is called a $\fbox{\phantom{4000000000}}$
Options:
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| Localize | Unit references in text (e.g. kilometres→miles) | Multiple Choice
Which of the following is not numerical data?
Options:
|
| Localize | AU/British spelling (e.g. colour→color, centre→center) | Multiple Choice
You are booking a theatre show ticket.
Tickets are only sold in batches of $2$ tickets or more in one booking, and one
Options:
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| Localize | AU/British spelling (e.g. colour→color, centre→center) | Multiple Choice
Centimetres and millimetres are $\fbox{\phantom{4000000000}}$ of length.
Options:
|
| Localize | Unit references in text (e.g. kilometres→miles) | Question
Why do we need different units to measure weight?
Answer:
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| Skip | No changes needed | Question
A cylinder has a radius of $r$ and height $h$. The area of its two circular ends is $2\pi r^2$.
If $r=2\text{ cm}$, wha
Answer:
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| Skip | No changes needed | Question
Your friend thinks that an angle the same as a right angle can also be called acute or obtuse.
Why is this wrong?
Answer:
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| Skip | No changes needed | Question
Why does a negative exponent result in a reciprocal?
Answer:
|
| Localize | AU/British spelling (e.g. colour→color, centre→center) | Multiple Choice
Which of the following statements defines a chord?
Options:
|
| Skip | Metric units — keep as-is for pedagogy | Question
In a circle, $AB$ is the diameter with a length of $13$ cm, and $C$ is a point on the circumference.
If $BC = 5$ cm, fin
|
| Skip | No changes needed | Question
Convert $5$ L into mL.
Answer:
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| Localize | AU/British spelling (e.g. colour→color, centre→center) | Multiple Choice
The $\fbox{\phantom{4000000000}}$ is the distance from the centre of a circle to any point on its circumference.
Options:
|
| Review | AI was not confident enough to classify | Question
In triangle $ABC$, $\overline{BC} = 153$ cm, $\overline{AB} = 128$ cm, and $\angle{ABC} = 47.3^\circ$.
Find $\overline{A
Answer:
|
| Localize | School terminology (e.g. Year 7, maths, term dates) | Multiple Choice
$\fbox{\phantom{4000000000}}$ form is a way of writing a linear equation that shows the gradient and $y$-intercept.
Options:
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| Skip | No changes needed | Multiple Choice
Which among these statements is true?
Options:
|
| Localize | AU/British spelling (e.g. colour→color, centre→center) | Question
Express $0.006$ cubic metres in cubic centimetres.
Answer:
|
| Localize | AU/British spelling (e.g. colour→color, centre→center) | Question
How can you confirm a shape has been rotated $90^\circ$ clockwise around a specific point?
Answer:
|
| Localize | Units in math expressions — needs careful conversion | Question
In a circle with diameter $AB = 10$ cm, point $C$ lies on the circle, forming $\triangle ACB$.
If $BC = 6$ cm, what is
|
| Localize | School terminology (e.g. Year 7, maths, term dates) | Question
If the inflation rate is $2\%$ per year, calculate the value of $\$2000$ indexed for inflation over $2$ years.
Answer:
|
| Skip | No changes needed | Multiple Choice
Fill in the blank.
The $12^\text{th}$ term of the arithmetic sequence whose first term is $1$ and the common difference
Options:
|
| Skip | No changes needed | Multiple Choice
Fill in the blank:
The total surface area of a closed cylinder with radius $r$ cm and height $h$ cm is given by $[?]$.
Options:
|
| Localize | AU/British spelling (e.g. colour→color, centre→center) | Question
Why do we multiply by $1000$ when changing cubic metres into litres?
Answer:
|
| Review | AI classifier and verifier disagreed | Question
An equilateral triangle has a perimeter of $36$ cm.
If the perpendicular height of the triangle is $10.4$ cm, what is i
Answer:
|
| Localize | Unit references in text (e.g. kilometres→miles) | Question
How many centimetres are in $2$ metres?
Answer:
|
| Skip | No changes needed | Multiple Choice
Fill in the blank:
$5a+6ab-b$ is an example of $[?]$.
Options:
|
| Skip | No changes needed | Question
Show why doubling the time doubles the simple interest earned.
Answer:
|
| Skip | Metric units — keep as-is for pedagogy | Question
When should you measure something in mm and when in cm?
Answer:
|
| Localize | AU/British spelling (e.g. colour→color, centre→center) | Question
A circular pizza has a diameter of $30$ cm. There is a circular hole at the centre of the pizza with a diameter of $4$ c
Answer:
|
| Localize | AU/British spelling (e.g. colour→color, centre→center) | Question
Tim says 'miles' is not a metric unit used to measure length.
How do you know he is correct?
Hint: Mile is imperial distance unit
Answer:
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| Skip | No changes needed | Multiple Choice
Which of the following is equal to $67$ L ?
Options:
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| Skip | No changes needed | Multiple Choice
Which number is the same as $\frac{1}{10}$?
Options:
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| Localize | AU/British spelling (e.g. colour→color, centre→center) | Question
At a car service centre, $58\%$ of vehicles are petrol and $42\%$ are diesel.
$12\%$ of petrol vehicles and $23\%$ of d
Answer:
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| Skip | No changes needed | Question
David found the 13th term ($a_{13}$) for the arithmetic sequence $21, 26, 31...$ to be $86$. Show that he is incorrect.
Hint: Check arithmetic pattern
Answer:
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| Skip | No changes needed | Question
What is the period of $2\tan{6x}$ ?
Answer:
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| Skip | No changes needed | Multiple Choice
A number is divisible by $2$.
Which of the following must also be divisible by $2$?
Options:
|
| Localize | Answers depend on AU units — must update together | Multiple Choice
Which units are most appropriate for measuring a small amount of cooking oil in a recipe?
Options:
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| Skip | No changes needed | Question
In how many ways can $6$ different books be arranged on a shelf if a specific book must always be placed last?
Answer:
|
| Localize | AU/British spelling (e.g. colour→color, centre→center) | Question
The volume of water $(V)$ in a container increases by a factor of $2$ every hour $(t)$.
If the container initially has $
Answer:
|
| Localize | AU/British spelling (e.g. colour→color, centre→center) | Multiple Choice
True or false:
The angle subtended by a chord at the centre of the circle is equal to the angle subtended by the same c
Options:
|
| Localize | AU/British spelling (e.g. colour→color, centre→center) | Multiple Choice
A rectangle has a perimeter of $60$ m, and the length is $4$ metres less than twice the width.
Which equation represents
Options:
|
| Skip | No changes needed | Multiple Choice
Maira bought a gold chain for $\$600$ ten years ago and it now costs $\$1500$.
She wants to investigate whether inflatio
Options:
|
| Skip | No changes needed | Question
What is the next term in the given sequence?
$1,\ 3,\ 11,\ 123,\ \cdots$
Hint: This pattern involves squared terms and addition.
Answer:
|
| Skip | No changes needed | Multiple Choice
True or false:
The perimeter of a two-dimensional shape is equal to the sum of the length of all the sides.
Options:
|
| Skip | No changes needed | Question
Find the simple interest if $P = \$200$, $R = 3\%$ p.a., and $T = 1$ year.
Answer:
|
| Skip | No changes needed | Skill: Understanding why a $c$ term needs to be introduced after antidifferentiation |
| Skip | No changes needed | Question
What is the missing term in the given sequence?
$-4.75$, $-4.25$, $[?]$, $-3.25$
Answer:
|
| Skip | Metric units — keep as-is for pedagogy | Multiple Choice
Convert $4.5$ tonnes : $750$ kg : $300000$ g into a simplified ratio.
Options:
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| Localize | AU/British spelling (e.g. colour→color, centre→center) | Multiple Choice
A water tank holds $60$ litres.
Each bottle can hold $1.5$ litres.
Which two expressions both show how many bottles can
Options:
|
| Localize | AU/British spelling (e.g. colour→color, centre→center) | Question
Why is it important to understand parallelograms in maths or in real-life designs?
Answer:
|
| Skip | No changes needed | Multiple Choice
Fill in the blank.
The slope of a simple interest graph equals the $[?]$.
Options:
|
| Localize | AU/British spelling (e.g. colour→color, centre→center) | Question
A drone flies at a speed of $15$ metres per second.
Convert this speed to kilometres per minute.
Answer:
|
| Skip | No changes needed | Question
The radius of a circular track is increased by $5$ cm, and its diameter becomes $40$ cm.
What was the original radius of
Answer:
|
| Localize | AU/British spelling (e.g. colour→color, centre→center) | Question
Fill in the blank:
A water tank is filled at a constant rate of $8$ litres per hour.
After $6$ hours, the tank will hav
Answer:
|
| Localize | School terminology (e.g. Year 7, maths, term dates) | Multiple Choice
Sarah's rectangular cake tin has a base area of $180$ cm$^2$. The length is $3$ cm longer than the width.
What are the d
Options:
|
| Localize | AU/British spelling (e.g. colour→color, centre→center) | Question
How do you know that combining two $3$ m by $2$ m spaces needs square metres to show the total area?
Hint: Add areas using square units
Answer:
|
| Localize | AU/British spelling (e.g. colour→color, centre→center) | Question
Show that $12.25$ m$^3$ plus $750$ millilitres is not the same as $13$ litres.
Answer:
|
| Skip | No changes needed | Question
The total surface area of a cone is $90\pi$ cm$^2$.
If its radius is $5$ cm, what is its slant height?
Answer:
|
| Skip | No changes needed | Question
Joe invested $\$20,000$ in an annuity which earns an interest of $12\%$ per annum compounding quarterly. He wants to rec
Answer:
|
| Localize | Unit references in text (e.g. kilometres→miles) | Multiple Choice
Which of the following is equal to $\$3.50$ ?
Options:
|
| Localize | AU/British spelling (e.g. colour→color, centre→center) | Question
A kite has an area of $1.2$ m$^2$. One of its diagonals measures $150$ cm.
What is the length of the other diagonal in
Answer:
|
| Skip | No changes needed | Question
A sum of $\$2000$ amounts to $\$2101.25$ in one year when the interest of $5\%$ is compounded half-yearly.
What will the
Answer:
|
| Skip | No changes needed | Question
What makes rounding to significant figures different from decimal places?
Answer:
|
| Localize | Units in math expressions — needs careful conversion | Question
The perimeter of a regular hexagon is $564$ cm.
What is the length of one of its sides?
Answer:
|
| Skip | No changes needed | Multiple Choice
A particle moves in a straight line and its velocity after $t$ seconds is given by $v(t)=3t^2+t$ m/s for $0\leq t\leq 12
Options:
|
| Localize | AU/British spelling (e.g. colour→color, centre→center) | Multiple Choice
A rectangle has a length that is $3$ metres more than its width.
If the area of the rectangle is equal to its perimeter
Options:
|
| Skip | No changes needed | Question
The radius of a spherical asteroid is $10$ km.
Find its surface area in terms of $\pi$.
Answer:
|
| Skip | No changes needed | Multiple Choice
Which of the following is not a unit for measuring the velocity of an object?
Options:
|
| Skip | No changes needed | Question
A rock has a mass of $90$ g and a volume of $3$ cm$^3$.
What is its density?
Answer:
|
| Skip | No changes needed | Multiple Choice
What is the value of $\sqrt[3]{-216}$?
Options:
|
| Localize | AU/British spelling (e.g. colour→color, centre→center) | Question
A cuboid-shaped tank has a length of $8$ m and a cross-sectional area of $7$ m$^2$.
Calculate the volume of the tank in
Answer:
|
| Skip | No changes needed | Multiple Choice
An $\fbox{\phantom{4000000000}}$ interest rate is the interest rate for a full year.
Options:
|
| Localize | AU/British spelling (e.g. colour→color, centre→center) | Question
Fill in the blank:
$3.2$ litres $+\ 0.175$ litres $+\ 250$ cm$^3\ = [?]$ cm$^3$
Answer:
|
| Skip | No changes needed | Multiple Choice
True or false:
The total surface area of a cube of side length $0.2$ cm is $2.4$ cm$^2$
Options:
|
| Skip | No changes needed | Multiple Choice
The volume of a sphere is $288\pi$ cm$^3$.
What is its radius?
Options:
|
| Review | AI was not confident enough to classify | Question
The lengths of two parallel sides of a trapezium are $12$ cm and $8$ cm, respectively. The distance between the parallel
Answer:
|
| Skip | No changes needed | Multiple Choice
Fill in the blank:
Two triangles have side lengths of $8$, $12$, $16$ cm and $4$, $6$, $8$ cm.
The triangles are similar
Options:
|
| Skip | No changes needed | Question
Does adding any two odd numbers always give an even answer?
Explain using two examples.
Answer:
|
| Skip | No changes needed | Question
Consider $f(x)=x^2+ax+5$ and $g(x)=x^2-x+5$ and $f(x)=g(x)$.
Find the value of $a$.
Answer:
|
| Skip | No changes needed | Question
The volume of the square pyramid is $48$ cm$^3$ and the cube has side length $6$ cm.
What is the volume of the composite
Answer:
|
| Skip | No changes needed | Question
What is $10$ m$^2$ in cm$^2$ ?
Answer:
|
| Localize | AU/British spelling (e.g. colour→color, centre→center) | Question
A delivery truck travels at $90$ kilometres per hour.
Convert this speed to metres per minute.
Answer:
|
| Skip | No changes needed | Question
Let $P(x) = x^{4} + ax^{3} + bx^{2} + cx + d$.
When divided by $(x+1)^{2}$, the quotient is monic with no constant term,
Answer:
|
| Skip | No changes needed | Question
Why do you need to divide the interest rate by the number of times it is compounded in a year when calculating compound
Answer:
|
| Skip | No changes needed | Question
What is the $11^{th}$ term of the arithmetic sequence whose first term is $10$ and its common difference is $10$?
Answer:
|
| Skip | Metric units — keep as-is for pedagogy | Question
A wheel has a diameter that is $2.5$ times the radius of another wheel.
If the radius of the second wheel is $12$ cm, wh
Answer:
|
| Review | AI classifier and verifier disagreed | Question
The volume of a rectangular tank is $2100$ cm$^3$. The base of the tank has dimensions $15$ cm and $8$ cm.
What is the
Answer:
|
| Localize | Unit references in text (e.g. kilometres→miles) | Multiple Choice
Which of the following is an example of categorical data?
Options:
|
| Skip | No changes needed | Question
How many grams are in $2$ kg and $45$ g of peanuts?
Answer:
|
| Review | AI output was malformed — needs manual review | Question
A particle has velocity function $v(t)=6t^2+4t+1$ cm/s for time $t\geq 0$.
Find the change in position of the particle f
Answer:
|
| Skip | No changes needed | Multiple Choice
Which of the following is the correct rule of the density function for $\frac{1}{5}X+6$ if $f$ is the probability densit
Options:
|
| Skip | No changes needed | Question
A solid is made by joining two cubes of side length $10$ cm along one full face.
What is the total surface area of the r
Answer:
|
| Localize | School terminology (e.g. Year 7, maths, term dates) | Multiple Choice
Which of the following can be represented by a discrete random variable?
Options:
|
| Localize | AU/British spelling (e.g. colour→color, centre→center) | Question
A water tank contains $85$ litres of water.
If $8$ litres are used for irrigation, how much water is left in the tank?
Answer:
|
| Skip | No changes needed | Question
How many mL are there in $40$ cm$^3$ ?
Answer:
|
| Skip | No changes needed | Question
How is changing $1$ m$^2$ into cm$^2$ different from changing $1$ m into cm?
Answer:
|
| Skip | No changes needed | Question
Fill in the blank:
$4.5$ mm$^2=[?]$ cm$^2$
Answer:
|
| Skip | No changes needed | Question
Why are road distances measured in km and not m?
Answer:
|
| Skip | No changes needed | Question
How do you know that the length of a rectangle with area $32$ cm$^2$ and width $4$ cm will be twice the width?
Answer:
|
| Localize | School terminology (e.g. Year 7, maths, term dates) | Subtopic: Financial Maths Calculations |
| Skip | No changes needed | Question
Fill in the blank.
A common ratio of $[?]$ results in a $10\%$ increase from one term of a geometric sequence to the nex
Answer:
|
| Skip | No changes needed | Question
The area of a kite is $2528.75$ cm$^2$. The length of the shorter diagonal is $70\%$ of the length of the longer diagona
Answer:
|
| Skip | No changes needed | Question
Why must both quantities in the ratio $3$ km$:$ $600$ m be written in the same units before simplifying?
Answer:
|
| Skip | No changes needed | Question
How do you know that the $7$th term in the geometric sequence $4, 8, 16...$ is $256$, not $2^7$?
Hint: Count sequence terms
Answer:
|
| Review | AI classifier and verifier disagreed | Question
Why do we multiply by $10\ 000$ and not $100$ when changing $1$ m$^2$ into cm$^2$?
Answer:
|
| Skip | No changes needed | Question
A company defines a week as $6$ days for their roster.
Based on a $365$-day year, how many full company weeks fit into
Answer:
|
| Skip | No changes needed | Question
What is $\frac{7}{8}-\frac{4}{8}$ ?
Answer:
|
| Skip | Metric units — keep as-is for pedagogy | Question
Fill in the blank:
$1.5$ ML $- \,\,950$ kL $=[?]$ L
Answer:
|
| Localize | AU/British spelling (e.g. colour→color, centre→center) | Question
The setup cost of a fitness centre is $\$24000$. Maintenance costs $\$12.50$ per member per month, and membership revenu
Answer:
|
| Skip | No changes needed | Question
Describe the two main steps to find the inverse of a function, such as $y = \frac{2x}{x-1}$.
Answer:
|
| Localize | AU/British spelling (e.g. colour→color, centre→center) | Question
Why do we group items in sets?
Answer:
|
| Skip | No changes needed | Question
A bike is purchased for $\$9,000$. The value of the bike decreases by $20\%$ each year.
Find the value the bike value af
Answer:
|
| Localize | Units in math expressions — needs careful conversion | Question
A round trip from Sydney to Brisbane covers a distance of approximately $1800$ km.
If you drive at an average speed of
Answer:
|
| Localize | School terminology (e.g. Year 7, maths, term dates) | Multiple Choice
What does the M stand for in BODMAS?
Options:
|
| Review | AI classifier and verifier disagreed | Multiple Choice
Which statement about simple random sampling is false?
Options:
|
| Localize | AU/British spelling (e.g. colour→color, centre→center) | Question
A tap fills at $0.5$ litres per second.
Sam says this equals $30$ litres per minute.
How can you prove if he is correc
Answer:
|
| Localize | Unit references in text (e.g. kilometres→miles) | Question
Why are different units of mass used for objects of different size?
Answer:
|
| Skip | No changes needed | Multiple Choice
Which of the following is the imperial unit of mass?
Options:
|
| Skip | No changes needed | Question
What is $75.254$ $\div \ 100$ ?
Answer:
|
| Skip | No changes needed | Skill: Understanding alternate angles in transversals |
| Skip | No changes needed | Multiple Choice
The highest power of the variable in a $\fbox{\phantom{4000000000}}$ is $1$
Options:
|
| Skip | No changes needed | Question
How do you know $\$1000$ at $5\%$ simple interest gives $50$ yearly?
Hint: Calculate yearly interest
Answer:
|
| Localize | AU/British spelling (e.g. colour→color, centre→center) | Question
A rectangular signboard has a width of $x$ metres and its height is twice the width.
Write an expression for the area.
Answer:
|
| Localize | AU/British spelling (e.g. colour→color, centre→center) | Question
Why does changing from kilometres per hour to metres per second change the number but not the speed?
Answer:
|
| Review | AI classifier and verifier disagreed | Question
In $\triangle ABC$, $\angle A = 40^\circ$, $BC = 13$ cm, and $AC = 19$ cm.
Determine how many distinct triangles can be
Answer:
|
| Skip | No changes needed | Multiple Choice
$3$ kg of oranges and $4$ kg of apples cost $\$24$.
$4$ kg of oranges and $3$ kg of apples cost $\$22$.
Which statement
Options:
|
| Skip | No changes needed | Question
Write the fifth term, $t_5$, of the sequence given by the recurrence relation $t_0=-2$, $t_{n+1}=-t_{n}$
Answer:
|
| Localize | Unit references in text (e.g. kilometres→miles) | Question
Explain why shoe size is a type of discrete data but the length of a shoe is continuous.
Answer:
|
| Skip | No changes needed | Question
How does understanding vertical lines relate to identifying functions?
Answer:
|
| Skip | Metric units — keep as-is for pedagogy | Question
The volume of a cone is $75\pi$ cm$^3$.
If its radius is $5$ cm, what is its perpendicular height?
Answer:
|
| Review | AI classifier and verifier disagreed | Question
What is $2000$ litres in m$^3$ ?
Answer:
|
| Localize | AU/British spelling (e.g. colour→color, centre→center) | Question
How do you know that a rectangle with its length and width in centimetres will have its area in square centimetres?
Answer:
|
| Skip | No changes needed | Question
Why does the $90$th percentile represent a higher score than the $10$th percentile?
Answer:
|
| Skip | No changes needed | Question
Fill in the blank:
If a plant grows linearly by $2$ cm each week, after $10$ weeks, it will have grown an additional $[?
Answer:
|
| Skip | No changes needed | Question
Why do quadratic functions curve instead of forming lines?
Answer:
|
| Localize | AU/British spelling (e.g. colour→color, centre→center) | Question
How many millilitres are in $1$ cubic centimetre?
Answer:
|
| Skip | No changes needed | Multiple Choice
A sum $P$ is invested for one year.
Account $1$ pays $4\%$ simple interest, earning $I_1$.
Account $2$ pays $3\%$ in si
Options:
|
| Localize | Units in math expressions — needs careful conversion | Question
A wheel of radius $35$ cm is rolled.
How far will it move after $10$ rotations?
Answer:
|
| Skip | No changes needed | Question
A student factorises $-6x - 12$ as $-(6x - 12)$.
How would you explain why this is incorrect?
Answer:
|
| Localize | Units in math expressions — needs careful conversion | Multiple Choice
Four bakeries produce dough at different rates.
Which bakery produces the most dough per minute?
Options:
|
| Skip | No changes needed | Question
Write $y^2 + 4y + 3y + 12$ in factorised form.
Answer:
|
| Review | AI classifier and verifier disagreed | Question
In triangle $\text{ABC}$, $\angle A=45^\circ,BC=8$ cm and $AC=10$ cm.
If $\angle B$ is an acute angle, then find the me
Answer:
|
| Skip | No changes needed | Multiple Choice
What is $\Large\frac{0}{0.5}$ ?
Options:
|
| Skip | No changes needed | Question
What is $\frac{3}{4} \times \frac{5}{4}$ ?
Answer:
|
| Localize | AU/British spelling (e.g. colour→color, centre→center) | Question
Find the total length, in metres, of the following:
$1.25$ km, $38\ 500$ cm and $72\ 000$ mm
Answer:
|
| Skip | No changes needed | Question
Why does the value of $a$ in $y=a(x-h)^2+k$ decide whether the parabola opens up or down?
Answer:
|
| Skip | No changes needed | Question
Mary borrowed $\$4000$ at an annual interest rate of $10\%$, compounded monthly, with monthly payments of $\$351.60$.
F
Answer:
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| Skip | No changes needed | Question
Explain why each term in the sequence $3,7,11,15...$ increases by $4$
Hint: Find constant difference
Answer:
|
| Skip | No changes needed | Multiple Choice
Evaluate $\int{e^{-mx}}dx$ where $m$ is a constant term.
Options:
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| Skip | No changes needed | Question
Convert $90000$ mL into L.
Answer:
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| Skip | No changes needed | Question
Why do we use similar steps to long division with numbers when dividing polynomials?
Hint: Divide, multiply, subtract, and bring down the next term.
Answer:
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| Skip | No changes needed | Question
What is the next term in the sequence ?
$5, 10, 20, ...$
Answer:
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| Skip | No changes needed | Multiple Choice
A company's profit increases by $1.08$ times every year.
If the profit generated in the first year was $\$10$ Million, h
Options:
|
| Localize | AU/British spelling (e.g. colour→color, centre→center) | Question
Calculate the volume (in litres) of a cylindrical tank with a height of $5$ m and a base area of $4$ m$^2$.
Hint: 1 m$^3$= 1000 litres
|
| Skip | No changes needed | Question
In $\triangle ABC$, $\angle A = 30^\circ$, $BC = 10$ cm, and $AC = 16$ cm.
Determine how many distinct triangles can be
Answer:
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| Review | AI was not confident enough to classify | Question
What is the total surface area of a $35$ cm long closed cylinder with a diameter of $13$ cm?
Answer:
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| Skip | No changes needed | Question
Find the $5$th term of the geometric sequence $3, 6, 12, 24,\dots$
Answer:
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| Skip | No changes needed | Question
An alloy is formed by mixing $1.25$ kg of Metal A, with a density of $7.5$ g/cm$^3$, and $500$ cm$^3$ of Metal B, with a
Answer:
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| Skip | No changes needed | Question
How do you know a $6$ cm$\times$ $3$ cm $\times$ $2$ cm box and $3$ cm $\times$ $2$ cm $\times$ $6$ cm box are the same?
Answer:
|
| Localize | Units in math expressions — needs careful conversion | Question
An architect is designing a triangular roof. The base of the roof is $19$ metres and the height is $22$ metres.
What is
Answer:
|
| Review | AI was not confident enough to classify | Question
Mia puts $\$500$ into a savings account.
The bank pays $4\%$ simple interest each year.
How much interest will she earn
Answer:
|
| Localize | AU/British spelling (e.g. colour→color, centre→center) | Multiple Choice
True or false:
Cubic centimetres is an appropriate unit to measure the volume of a wooden plank.
Options:
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| Skip | No changes needed | Question
How do you know $3^n$ triples from one term to the next?
Answer:
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| Skip | No changes needed | Multiple Choice
Which statement best explains why compound interest causes exponential growth?
A) The interest rate increases each year
Options:
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| Skip | No changes needed | Question
Why does compound interest grow faster than simple interest?
Answer:
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| Skip | No changes needed | Question
An exterior angle of an isosceles triangle is $100^\circ$, and this exterior angle is adjacent to one of the base interi
Answer:
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| Skip | No changes needed | Question
In $\triangle ABC$, $\angle A = 30^\circ$, $BC = 7$ cm, and $AC = 16$ cm.
Determine how many distinct triangles can be
Answer:
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| Skip | Metric units — keep as-is for pedagogy | Question
Fill in the blank:
$\frac{3}{4}$ kg $=[?]$ g
Answer:
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| Skip | No changes needed | Question
The volume of the cylinder is $540$ cm$^3$ and the volume of the cone is $180$ cm$^3$.
What is the volume of the composi
Answer:
|
| Skip | No changes needed | Question
Why do we complete the square to convert a quadratic to turning point form?
Hint: Add and subtract the square term to balance the equation.
Answer:
|
| Localize | Units in math expressions — needs careful conversion | Multiple Choice
A hiker walks $7$ km east, $5$ km south, $3$ km east, then $1$ km north.
How far is the hiker from their starting point
Options:
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| Skip | No changes needed | Question
Hannah started a job in $2010$ with an annual salary of $\$35000$. Each year, she received a pay increase of $\$200$.
Wh
Answer:
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| Skip | No changes needed | Question
Convert $0.65$ L into mL.
Answer:
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| Localize | AU/British spelling (e.g. colour→color, centre→center) | Question
Why is it important to understand decimal shifts when solving measurement problems?
Answer:
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| Localize | AU/British spelling (e.g. colour→color, centre→center) | Multiple Choice
A rectangular garden has an area of $120$ m$^2$ and a perimeter of $52$ m, with length $𝑙$ metres and width $𝑤$ metres.
Options:
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| Skip | No changes needed | Question
Solve for $x$:
$\dfrac{1}{x-2}= \dfrac{3x+1}{x^2-4}$
Answer:
|
| Skip | No changes needed | Question
What is the next term in the sequence?
$1,5,13,25,41,\dots$
Hint: $2^2+3^3=13$
Answer:
|
| Skip | No changes needed | Multiple Choice
A delivery route has three segments.
The first segment is $2.8$ km, the next is $1550$ m, and the last is $35000$ cm.
Options:
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| Localize | AU/British spelling (e.g. colour→color, centre→center) | Question
A cyclist travels $12.6$ kilometres in $1.5$ hours.
Find the speed in metres per hour.
Answer:
|
| Localize | AU/British spelling (e.g. colour→color, centre→center) | Question
A floor is in the shape of a rectangle.
It has a length of $8.12$ metres and a width of $7.54$ metres.
Calculate the a
Answer:
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| Skip | No changes needed | Multiple Choice
Complete the statement below.
The sum of an $n$-term geometric series with first term $a$ and common ratio $r$ is given
Options:
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| Localize | AU/British spelling (e.g. colour→color, centre→center) | Question
A submarine's depth is given by $y = 150 + 30 \cos\left(\frac{\pi}{10} t\right)$, where $y$ is the depth below sea level
Answer:
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| Skip | No changes needed | Question
Why does $1$ hour equal $3600$ seconds?
Answer:
|
| Review | AI classifier and verifier disagreed | Multiple Choice
Olivia borrows $\$5000$ from the bank at a simple interest rate of $6\%$ per annum.
After $4$ years, will the amount of
Options:
|
| Localize | AU/British spelling (e.g. colour→color, centre→center) | Question
The height of a point on a bicycle wheel is given by $y = 0.5 + 0.3 \sin(2 \pi t)$, where $y$ is height in metres and $t
Answer:
|
| Localize | Units in math expressions — needs careful conversion | Question
Fill in the blank:
A cyclist rides $5$ km every day.
After $14$ days, the total distance travelled will be $[?]$ km.
Answer:
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| Skip | No changes needed | Question
Fill in the blank:
$20060$ g $=20$ kg and $[?]$ g
Answer:
|
| Review | AI classifier and verifier disagreed | Question
Evaluate $(-1)^{100}$
Answer:
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| Skip | No changes needed | Question
Convert $7$ kg and $409$ g into grams.
Answer:
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| Skip | No changes needed | Question
A rectangular prism with dimensions $6$ cm $\times$ $4$ cm $\times$ $3$ cm is enlarged by a scale factor of $3$.
What i
Answer:
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| Skip | No changes needed | Question
A sequence decreases by $\dfrac{2}{9}$ each time.
If the $15$th term is $-\dfrac{5}{3}$, what is the first term?
Answer:
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| Skip | No changes needed | Question
Why does multiplying two polynomial functions increase the degree of the result?
Answer:
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| Skip | No changes needed | Question
Explain why the $5$th term in the sequence $2, 6, 18,...$ is $162$
Hint: Apply constant multiplier
Answer:
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| Localize | AU/British spelling (e.g. colour→color, centre→center) | Question
Why does changing the centre angle affect both the sector and triangle areas differently?
Answer:
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| Localize | AU/British spelling (e.g. colour→color, centre→center) | Question
A gardener uses $0.125$ kg of fertiliser per square metre. She fertilises $1000$ m$^2$ of the garden.
How much fertilise
Answer:
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| Skip | No changes needed | Multiple Choice
Is $\begin{bmatrix} 1&0&0\\0&0&1\end{bmatrix}$ an identity matrix?
Options:
|
| Skip | No changes needed | Question
Find the missing term in the given sequence.
$10, 9.8, [?], 9.4, 9.2$
Answer:
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| Skip | No changes needed | Question
How do you know the discriminant $b^2-4ac=0$ means there is one repeated real root?
Answer:
|
| Localize | AU/British spelling (e.g. colour→color, centre→center) | Question
How many litres are there in $6$ m$^3$ ?
Answer:
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| Skip | No changes needed | Question
Fill in the blank:
$(-4)^{-2}=[?]$
Answer:
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| Skip | No changes needed | Question
The area of a sector is $\frac{132}{7}$ cm$^2$ and the central angle is $60^\circ$.
What is the diameter of the entire
Answer:
|
| Skip | No changes needed | Multiple Choice
Fill in the blank:
Two lines have the same gradient but different $y$-intercepts. These lines are $[?]$
Options:
|
| Localize | AU/British spelling (e.g. colour→color, centre→center) | Question
Why is it important to organise $x$ and $y$ values in a table?
Answer:
|
| Skip | Metric units — keep as-is for pedagogy | Multiple Choice
A recipe uses $900$ g of flour and $2.7$ kg of sugar.
Express the ratio in grams, in simplest form.
Options:
|
| Skip | No changes needed | Question
A basket has $16$ apples.
How do you know there will be $10$ apples if $6$ are taken away?
Answer:
|
| Skip | No changes needed | Multiple Choice
True or false:
${11}$ is the constant term in $t^2+{11}t-{11}$.
Options:
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| Skip | No changes needed | Multiple Choice
Fill in the blank.
$745.98$ mL$=[?]$ cm$^3$
Options:
|
| Localize | Units in math expressions — needs careful conversion | Question
Fill in the blank:
$0.003$ ML $+ 4.2$ kL $=[?]$ L
Answer:
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| Skip | No changes needed | Question
A triangle has a base length of $15$ cm and a height of $8$ cm.
Find the area of the triangle.
Answer:
|
| Localize | AU/British spelling (e.g. colour→color, centre→center) | Multiple Choice
Circle A has the equation $(x - 2)^2 + (y + 3)^2 = 16$.
Circle B has the same centre as Circle A, but its radius is ha
Options:
|
| Localize | AU/British spelling (e.g. colour→color, centre→center) | Multiple Choice
Water is flowing at a rate of $300$ millilitres per second.
How many litres flow in one minute?
Options:
|
| Localize | AU/British spelling (e.g. colour→color, centre→center) | Multiple Choice
Fill in the blank:
The point at which both axes intersect is called the $[?]$ on the Cartesian plane.
Options:
|
| Skip | No changes needed | Question
Fully factorise the following expression:
$-2x^6y^7z^3-4x^3y^3z$
Answer:
|
| Skip | No changes needed | Multiple Choice
True or false:
$1$ year is the same as $12$ months.
Options:
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| Skip | No changes needed | Question
Explain why subtracting $0.25$ from each term creates a sequence in $2.0, 1.75, 1.5, 1.25,...$.
Answer:
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| Skip | No changes needed | Question
How do you know the $5$th term in the geometric sequence $2, 10, 50...$ is $1250$, not $500$?
Hint: Verify sequence terms
Answer:
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| Skip | No changes needed | Question
A city had a population of $54302$ people.
In the first half of the year, $12678$ people left.
In the second half of t
Answer:
|
| Skip | No changes needed | Question
A sphere has a diameter of $8$ cm.
Calculate its volume, leaving the answer in terms of $\pi$.
Answer:
|
| Skip | Metric units — keep as-is for pedagogy | Question
Find the distance of Miami$(26^\circ{N},80^\circ{W})$ from the equator.
Hint: Take Earth's radius to be $6371$ km
Answer:
|
| Localize | AU/British spelling (e.g. colour→color, centre→center) | Multiple Choice
Fill in the blank:
$1$ micrometre $=[?]$ metres
Options:
|
| Localize | AU/British spelling (e.g. colour→color, centre→center) | Question
How do asymptotes relate to understanding graphs?
Answer:
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| Skip | No changes needed | Question
For a random variable $F$ , it is known that $Var(F)=9$ .
Calculate $sd(5F-11)$ .
Answer:
|
| Review | AI classifier and verifier disagreed | Question
Delhi, India and Xinjiang, China have coordinates $(29^\circ N,77^\circ E)$ and $(41^\circ N,77^\circ E)$.
Calculate th
Answer:
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| Localize | AU/British spelling (e.g. colour→color, centre→center) | Question
How do you know millilitres is not an imperial unit of volume?
Hint: mL is metric, not imperial
Answer:
|
| Skip | No changes needed | Question
How does finding equivalent fractions relate to comparing $\frac{2}{3}$ and $\frac{3}{4}$?
Answer:
|
| Skip | No changes needed | Question
Why is Pythagoras’ theorem only applicable for right triangles?
Answer:
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| Skip | No changes needed | Question
Convert $2$ L into mL.
Answer:
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| Skip | No changes needed | Multiple Choice
A library initially has $10\ 000$ books.
Each year, $500$ are added and $150$ are removed.
Which recurrence relation des
Options:
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| Localize | Units in math expressions — needs careful conversion | Multiple Choice
A delivery company charges a flat fee of $\$15$ plus $\$5$ for every kilometre travelled.
If a $10\%$ discount is given
Options:
|
| Skip | No changes needed | Question
Suppose that a bicycle costs $\$3,450$ today.
If inflation averages $1.5\%$ per year, calculate the value of the bicycle
Answer:
|
| Skip | No changes needed | Question
A large jug holds $2.25$ L.
How many $250$ mL cups can be filled from the jug?
Answer:
|
| Skip | Metric units — keep as-is for pedagogy | Question
How do you know a right triangle with height $4$ cm, base $3$ cm is similar to one with height $12$ cm, base $9$ cm?
Answer:
|
| Skip | No changes needed | Multiple Choice
$\fbox{\phantom{4000000000}}$ growth is a type of growth where the quantity increases by a constant amount per unit of
Options:
|
| Skip | No changes needed | Question
Explain why $I = P \times R \times T$ is used for simple interest.
Answer:
|
| Localize | AU/British spelling (e.g. colour→color, centre→center) | Question
Find the volume of the composite solid shown below.
Image description: A rectangular prism measuring $10$ cm by $8$ cm
Answer:
|
| Localize | AU/British spelling (e.g. colour→color, centre→center) | Question
Explain why Quadrant I has positive $x$ and $y$ values, while Quadrant III has negative $x$ and $y$.
Answer:
|
| Skip | No changes needed | Multiple Choice
If $A=$$\begin{bmatrix}
0&0&1\\
0&1&0\\
1&0&0\\
\end{bmatrix}$ and $B=$$\begin{bmatrix}
1&4&-1\\
2&-2&2\\
1&-2&0\\
\end{
Options:
|
| Localize | AU/British spelling (e.g. colour→color, centre→center) | Question
How many litres are there in $7$ m$^3$ ?
Answer:
|
| Localize | AU/British spelling (e.g. colour→color, centre→center) | Question
A student has mastered $50.2\%$ of $500$ maths skills.
How many skills remain to be mastered?
Answer:
|
| Localize | AU/British spelling (e.g. colour→color, centre→center) | Question
Explain why the circle $(x + \frac{3}{2})^2 + (y - 3)^2 = 36$ has centre $\left(-\frac{3}{2}, 3\right)$.
Answer:
|
| Skip | Metric units — keep as-is for pedagogy | Question
Find the volume of the composite solid shown below.
Image description: The solid is made from two rectangular prisms.
T
Answer:
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| Skip | No changes needed | Skill: Comparing decimals |
| Skip | No changes needed | Multiple Choice
For two disjoint sets $P$ and $Q$, we know that $P\cup{Q}=U$, where $U$ is the universal set, which of these statements
Options:
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| Skip | No changes needed | Multiple Choice
Which of the following gives the $n^\text{th}$ term of the geometric sequence whose fourth and seventh terms are $24$ an
Options:
|
| Skip | No changes needed | Multiple Choice
Which of the following statements is true?
Options:
|
| Localize | Units in math expressions — needs careful conversion | Question
Location coordinates are given as:
Point $X$ $=42^\circ{N},170^\circ{E}$
Point $Y$ $=60^\circ{N},170^\circ{E}$
Wha
Answer:
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| Skip | No changes needed | Question
Fill in the blank:
$600$ cm$^3$ $+\ 0.001$ m$^3=[?]$ cm$^3$
Answer:
|
| Localize | Units in math expressions — needs careful conversion | Question
For two places lying on a meridian, their coordinates of the location are $36^\circ{N}$ and $12^\circ{S}$.
What is the
Answer:
|
| Localize | AU/British spelling (e.g. colour→color, centre→center) | Question
What makes the form $y=a(x-h)^3+k$ useful for graphing cubics?
Answer:
|
| Localize | AU/British spelling (e.g. colour→color, centre→center) | Question
Why must we analyse real situations to identify mutually exclusive events?
Answer:
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| Skip | No changes needed | Multiple Choice
In a geometric sequence, the $k^{th}$ term is $T_k$ and the $(k+2)^{th}$ term is $T_{k+2}$.
If $T_k \cdot T_{k+2} = (T_{
Options:
|
| Localize | AU/British spelling (e.g. colour→color, centre→center) | Question
A fish tank has dimensions $80$ cm $\times$ $50$ cm $\times$ $40$ cm.
What is its volume in litres?
Answer:
|
| Skip | No changes needed | Multiple Choice
True or false:
$4\times(20+8)= (4\times 20 ) + (4\times 8)$
Options:
|
| Localize | Units in math expressions — needs careful conversion | Question
I take two and a half hours to run $1.5$ km.
What is my average speed in km per hour?
Answer:
|
| Skip | No changes needed | Multiple Choice
Choose the correct symbol to fill in the blank.
$9$ $[?]$ $9$
Options:
|
| Localize | AU/British spelling (e.g. colour→color, centre→center) | Question
Bill makes a purchase of $\$2000$ and pays a deposit of $\$500$ and agrees to pay the rest in $7$ instalments, each wort
Answer:
|
| Skip | No changes needed | Subtopic: Base Ten Logarithms |
| Skip | No changes needed | Multiple Choice
The price of an electronic bicycle is represented by the regression line:
Price $= 900 - 10 \times$ quarter of a year
Wh
Options:
|
| Skip | No changes needed | Multiple Choice
A $\fbox{\phantom{4000000000}}$ is a fixed numerical value.
Options:
|
| Localize | School terminology (e.g. Year 7, maths, term dates) | Question
A total of $\$328.80$ including GST was paid for public transport last year.
What was the cost excluding GST?
Answer:
|
| Skip | No changes needed | Multiple Choice
A jug has a capacity of $1.5$L.
Which of the following best explains what this means?
Options:
|
| Localize | AU/British spelling (e.g. colour→color, centre→center) | Multiple Choice
Cubic metres and cubic centimetres are units of $\fbox{\phantom{4000000000}}$
Options:
|
| Localize | AU/British spelling (e.g. colour→color, centre→center) | Question
A rectangular prism has a square base. the height of the prism is twice the length of a side of the base.
If $O$ is the
Answer:
|
| Skip | No changes needed | Question
What makes monthly compounding use $12$ periods?
Hint: Divide the annual rate by $12$ to find the monthly rate.
Answer:
|
| Localize | AU/British spelling (e.g. colour→color, centre→center) | Question
Why does multiplying litres by $1000$ always give the number of millilitres?
Answer:
|
| Skip | No changes needed | Multiple Choice
Which of the following will not maintain mathematical equivalence?
Options:
|
| Skip | No changes needed | Multiple Choice
Which recurrence relation represents a geometric sequence with first term $81$ and common ratio $\dfrac{1}{3}$?
Options:
|
| Skip | No changes needed | Multiple Choice
Creating tables of values helps in understanding the $\fbox{\phantom{4000000000}}$ between variables.
Options:
|
| Skip | No changes needed | Multiple Choice
Which of the following is the general term $u_n$ of the geometric sequence in which $u_5=\frac{3}{16}$ and $u_8=\frac{3}
Options:
|
| Skip | No changes needed | Question
Fill in the blank:
$1.25$ ML $+ \,\,1500$ L $+ \,\,2.75$ kL $=\ [?]$ ML
Answer:
|
| Skip | No changes needed | Question
Explain why $30$ months equals $2$ years and $6$ months
Answer:
|
| Localize | Units in math expressions — needs careful conversion | Question
The latitude and longitude of Beijing, China is $40^\circ N$ and $116^\circ E$ respectively.
Find its distance from the
Hint: Take Earth's radius to be $6371$ km
|
| Localize | School terminology (e.g. Year 7, maths, term dates) | Question
A man bought a laptop costing $\$15000$. He pays a deposit of $\$3000$. He must pay the remaining amount by making month
Answer:
|
| Skip | No changes needed | Question
What is the least possible number of edges in a connected graph having three vertices?
Answer:
|
| Localize | AU/British spelling (e.g. colour→color, centre→center) | Multiple Choice
Fill in the blank:
Footwear colour is an example of $[?]$ data.
Options:
|
| Skip | Metric units — keep as-is for pedagogy | Question
A triangular prism has a right-angled triangle base with $\angle C = 90^\circ$, $AC = 6$ cm, and $BC = 8$ cm. The hypote
Answer:
|
| Skip | No changes needed | Question
A rectangular box has dimensions of $2$ cm, $3.3$ cm, and $10$ cm.
What is the total surface area of the box?
Answer:
|
| Localize | AU/British spelling (e.g. colour→color, centre→center) | Multiple Choice
Which of the following is the equation of a semicircle with centre at $(1,1)$ and radius $2$ units with its base on $y-$
Options:
|
| Skip | No changes needed | Question
How many years will it take for $\$1500$ to double if it is invested at an annual interest rate of $6\%$, compounded con
Answer:
|
| Skip | No changes needed | Multiple Choice
A chemical solution is $1200$ ml. Each hour, $75$ ml evaporates, and $15$ ml is added.
Which recurrence relation repres
Options:
|
| Skip | No changes needed | Multiple Choice
True or false:
Single-stage experiments involve only one action or trial.
Options:
|
| Skip | No changes needed | Multiple Choice
Which of the following is not a key property of the function $y = \frac{1}{x^2}$ ?
Options:
|
| Skip | No changes needed | Skill: Naming angles using standard conventions |
| Skip | No changes needed | Question
An amount $P$ is invested for $3$ years at $R\%$ simple interest.
The same $P$ is invested for $2$ years at $(R + 2.5)\
Answer:
|
| Skip | No changes needed | Question
In a particular geometric sequence, the second term is $2\sqrt{2}$ and the ninth term is $32$.
What is the $14^\text{th}
Answer:
|
| Skip | No changes needed | Multiple Choice
What is the total surface area of a cone if $l$ is slant height, $r$ is the radius of the circular base and $h$ is the v
Options:
|
| Localize | AU/British spelling (e.g. colour→color, centre→center) | Question
Find the smallest distance between the centre of the circle of radius $12$ cm and a chord of length $18$ cm.
Answer:
|
| Localize | AU/British spelling (e.g. colour→color, centre→center) | Multiple Choice
Fill in the blank:
A team of talented maths students being selected to represent a school in an interschool maths compet
Options:
|
| Skip | No changes needed | Multiple Choice
Which of the following numbers is larger than $11111$ ?
Options:
|
| Skip | No changes needed | Multiple Choice
What is the correct factorisation of $-12x^2y + 6xy^2 - 18x^2y^2$ ?
Options:
|
| Skip | No changes needed | Multiple Choice
True or false:
A continuous random variable can represent the amount of iron contained in a beaker containing $250$ ml o
Options:
|
| Skip | No changes needed | Question
Solve for $x$:
$\frac{4.8}{5}-\frac{x}{4}=6$
Answer:
|
| Skip | No changes needed | Question
Why does multiplying every term of an equation by the same number not change the solutions of the system?
Answer:
|
| Localize | AU/British spelling (e.g. colour→color, centre→center) | Question
A grocery store sells milk in cartons of $1$ litre.
A customer wants to purchase a total of $3000$ millilitres of milk.
Answer:
|
| Localize | Units in math expressions — needs careful conversion | Question
A plane flies $100$ km on a bearing of $025^\circ \text{T}$.
How far east does the plane fly?
Hint: Use trigonometry to determine the distance travelled.
|
| Skip | No changes needed | Question
A gold bar has a mass of $1000$ g and a density of $19.3$ g/cm$^3$.
What is the volume of the gold bar?
Answer:
|
| Skip | No changes needed | Question
Why does solving a logarithmic equation often involve rewriting it in exponential form?
Answer:
|
| Skip | No changes needed | Question
How does understanding percentages help you make sense of different interest rates?
Answer:
|
| Skip | No changes needed | Question
Explain why $x$ in $\frac{7}{x} = 2$ can be found by multiplying both sides by $x$ and then dividing by $2$.
Hint: Isolate variable term
Answer:
|
| Skip | No changes needed | Question
Fill in the blank.
The solutions to the quadratic equation $x^2 - 2x - 3 = 0$ are $x = \frac{2 \pm \sqrt{[?]}}{2}$.
Answer:
|
| Skip | No changes needed | Multiple Choice
Find the value of $m$ such that the equation $mx^2 - 2x + 1 = 0$ has exactly one solution.
Options:
|
| Skip | No changes needed | Question
Why do we subtract the discount from the original price to get the final price?
Answer:
|
| Skip | No changes needed | Question
Convert $7000$ mL into L.
Answer:
|
| Skip | No changes needed | Question
How many months in a year have exactly $31$ days?
Answer:
|
| Skip | No changes needed | Multiple Choice
A scale using exponential increases is called a $\fbox{\phantom{4000000000}}$ scale.
Options:
|
| Localize | AU/British spelling (e.g. colour→color, centre→center) | Question
A rectangular billboard is built with $100$ metres of framing. Its area is modelled by $A = -x² + 50x$
What is the maxim
Answer:
|
| Skip | No changes needed | Question
What is the next term in the sequence?
$0.6, 1.2, 2.4, \dots$
Answer:
|
| Skip | No changes needed | Question
Map A uses a scale of $1$ cm = $1$ km.
Map B uses a scale of $1$ cm = $0.5$ km.
A road appears $6$ cm long on Map A.
How
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| Localize | AU/British spelling (e.g. colour→color, centre→center) | Question
An architect is designing a triangular balcony. The base of the balcony is $15$ metres, and the height is $20$ metres.
W
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Express $\log_{3}{5}+\log_{3}{2}+\log_{3}{4}$ as a single logarithm.
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| Localize | AU/British spelling (e.g. colour→color, centre→center) | Multiple Choice
True or false:
The cubic metre (m$^3$), is a base SI unit.
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Convert $3.9$ kg into grams.
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How do you know that a square with area $16$ cm$^2$ cannot have a side length of $5$ cm?
Hint: Square area = side$^2$
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How many mL are there in $3.5$ L ?
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John borrowed $\$4000$ at $10\%$ annual interest, compounded monthly, with monthly payments of $\$351.60$.
What is his
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| Localize | Units in math expressions — needs careful conversion | Question
Find the radius of the circle in which the central angle of $\frac{\pi}{3}$ intercepts an arc of length $37.4$ cm.
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What factor does the SI prefix ‘kilo-’ represent in terms like kilogram or kilometre?
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| Localize | AU/British spelling (e.g. colour→color, centre→center) | Question
Why does converting from a smaller unit (like mL) to a larger unit (like L) make the number smaller, even though the amo
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Find the missing term in the sequence:
$1.50, 2.50, 6.50, 13.50, 23.50, 36.50, [ ? ]$
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| Localize | AU/British spelling (e.g. colour→color, centre→center) | Question
Naruto runs a total distance of $800$ meters while using his Sage Mode.
How long did it take him to cover this distance
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| Skip | No changes needed | Multiple Choice
True or false:
In reducing balance loans, the balance owed is reduced by half after every depreciation term.
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| Review | AI classifier and verifier disagreed | Question
The area of the circular base of a cone is $20$ m$^2$ and its height is $9$ m.
Find the volume of the cone to the neare
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