A demo of how custom marking algorithms can be used to replace the built-in marking methods.

This question demonstrates a few ways of interacting with a Venn diagram drawn using JSXGraph.

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Given the exchange rate between two currencies, calculate how much of one currency you will get for $x$ amount of the other

Given the exchange rate between two currencies and the bank's commission rate, calculate how much of one currency you will get for $x$ amount of the other

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.

Using a given list of four complex numbers, find by inspection the one that is a root of a given cubic real polynomial and hence find the other roots.

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.

Questions testing understanding of the precedence of operators using BIDMAS applied to integers.

This question asks the student to calculate three points of a given linear function then plot these points in a JSXGraph item and find the x and y intercepts of the line.

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

Calculate P(A|B) given a two way table.

Calculate an intersection probability given a two way table.

Calculate P(A|B) given a two-way table.

Reading a value from a stacked bar chart.

Reading a value from a simple bar chart.

Convert speeds from m/s to km/h