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This question asks you to work out one value as a percentage of another.  You are expected to do these without the help of a calculator.

Show one of several blocks of text depending on the value of a question variable.

As well as a simple check for the value of a variable, the condition to display a block of text can be a complex expression in any of the question variables - in this example, depending on the discriminant of the generated quadratic.

6 questions which introduce the student to the Numbas system.

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A collection of questions to show off at a workshop for the North East and Yorkshire sigma hub, June 2016.

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This is a set of questions designed to help you practice adding, subtracting, multiplying and dividing fractions.

All of these can be done without a calculator.

8 questions on the quotient rule in differentiation.

The student is asked to integrate a given function. The marking algorithm differentiates the student's answer, and checks that it is equivalent to the original function.

Laplace from tables: e^(at), cos(bt), sin(bt).

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Match the equivalence with the rule