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Use the BODMAS rule to determine the order in which to evaluate some arithmetic expressions. 

Demonstration of randomisation: many elements in this question are randomised. The names of the products and clients are randomly chosen, as are the prices and order amounts.

aij  notation and definition of the order of a matrix.

First- and second order recurrence equations, homogenous and nonhomogenous

How to find solutions to a second order recurrence relation.

Consider a binary tree with $2^n$ nodes.

We give generators for the isomorphisms of the tree: at each non-leaf vertex, swap the branches descending from that node.

• What is the action of a given word?
• Write a word which produces the required isomorphism
• Which generators commute?
• What is the order of each generator?
• Write one of the (non-root) generators in terms of the others.
• Which permutations of the leaves are possible?
• What is the order of the group of isomorphisms?
• What is the order of the quotient group obtained by identifying all the leaves of one branch?

Complementary function/particular integral for forced simple harmonic motion (non-resonant)

This question defines an otherwise-pointless pre-submit task of "wait for a while" before marking the student's answer, in order to demonstrate how to use the pre-submit tasks feature.

This question tests the student's ability to solve simple linear equations by elimination. Part a) involves only having to manipulate one equation in order to solve, and part b) involves having to manipulate both equations in order to solve. 

Convert a metric measurement to another order of magnitude, e.g. g to kg.

Two ordered data sets, each with 10 numbers. Find the sample standard deviation for each and for their sum.

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Solve for $x$: $\displaystyle ax ^ 2 + bx + c=0$.

Entering the correct roots in any order is marked as correct. However, entering one correct and the other incorrect gives feedback stating that both are incorrect.

Use the BODMAS rule to determine the order in which to evaluate some arithmetic expressions. 

Use the BODMAS rule to determine the order in which to evaluate some arithmetic expressions. 

Use the BODMAS rule to determine the order in which to evaluate some arithmetic expressions. 

Use the BODMAS rule to determine the order in which to evaluate some arithmetic expressions. 

Simple questions on interval notation. If you are not randomising the order of your questions please turn on randomise choices in these questions.

Solving 2nd order differential equation for pendulum, with and without damping.

Two sample t-test to see if there is a difference between scores on questions between two groups when the questions are asked in a different order.

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Simple questions on interval notation. If you are not randomising the order of your questions please turn on randomise choices in these questions.

Simple questions on interval notation. If you are not randomising the order of your questions please turn on randomise choices in these questions.

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Simple questions on interval notation. If you are not randomising the order of your questions please turn on randomise choices in these questions.

A question designed to demonstrate the exam-level variable overrides feature. The student must work out the median of a given sample. The exam can override size of the sample, the range of numbers to pick, and whether the sample should be shown to the student in increasing order.

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Ask for the squares of five randomly-chosen numbers between 0 and 15.

The shuffle function puts a list in random order.