Given the ratio of copper to zinc in brass, calculate how much more copper than zinc is used to create a given amount of brass.

Used for chemistry/materials

Given the ratio of male to female gym members, calculate how many more women than men use the gym

Calculating a salesperson's income based on years of service and commission from sales

Calculating the original amount when told that $p\%$ is $x$. The value given can be non-integer.

Given the number of international students enrolled on a course of $n$ students, calculate the percentage of 'home' students.

Students are shown a normal distribution, and a slider that moves the distribution horizontally. They are asked to move it so that the mean is equal to a particular value.

Students are shown an unsorted list of 6 or 7 numbers and asked to calculate the median.

A normal curve is displayed. Mean and standard deviation can be set by sliders.

Calculating rates and scaling rates. Drops per mL and drops per minute questions unit rate to equivalent rate.

Reading a value from a stacked bar chart.

Reading a value from a simple bar chart.

Convert speeds from m/s to km/h

Convert numbers between 0 and 1 from standard form/scientific notation.

Convert numbers greater than 1 from standard form/scientific notation.

Convert numbers greater than 1 into standard form/scientific notation.

Convert numbers between 0 and 1 intro standard form/scientific notation.

Given the total cost, insurance cost, and daily cost of hiring a bicycle, calculate the number of days the bicycle was hired for.

Subtracting a decimal with 3 decimal places from a decimal with 2 or 3 decimal places. borrowing is necessary. This was modified from a subtraction question using integers with each number divided by 1000 so the variables have names referring to ones, tens, hundreds etc.

The subtraction algortihm using the borrow and pay back method with integers.

A single question which asks you to round to the nearest ten, hundred or thousand. 

Primarily concerned with identifying when a number is in the thousands, million, billions or trillions.

Is this number divisible by 2? Half the time the number is, half the time it isn't. Steps give the divisibility test.

No description given

Equivalent fractions, simplifying, adding, subtracting, multiplying and dividing fractions. Converting between mixed numbers and improper fractions.

Quiz for expanding brackets and factorising

Given a regular n-gon, students are asked for the sum of external angles, sum of internal angles, and the values of the external and internal angles.

Given n-1 angles inside a polygon, students have to calculate the value of the last internal angle.

Students are shown 4 exponential equations, and 4 graphs and asked to match them.

Students explore the relationship between length and area of a rectangle.

The perimeter of the rectangle is randomised. Students are given 11 different lengths, and asked to compute rectangle width and area for each. They are then asked to graph the function, identify it as a parabola, and estimate the maximum value.

Students are asked to find either the initial production cost, or a gradient, or the break even point from a graph.
They are then asked to determine the profit or loss from the graph for the production of a particular number of units. This number is randomised.