Jinhua Mathias

Identifying the correct rule to use

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Quotient and remainder, polynomial division.

Given cost of production and price of sale of a product; a percentage increase in cost of production; and unit sales before and after; work out the extra profit.

Based on question 6 from section 3 of the maths-aid workbook on numerical reasoning.

Simplifying indices.

Finding the volumes of basic 3D shapes

This exercise will help you round off decimals to given decimal places.

This exercise will help you round off decimals to given decimal places.

Simplifying indices.

Simplifying indices.

Real life problems with differentiation

Simplifying indices

Practice with adding, subtracting and dividing basic algebraic fractions

More work with dividing and multiplying algebraic fractions

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Straightforward solving linear equations question

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Solve for $x$ and $y$:  \[ \begin{eqnarray} a_1x+b_1y&=&c_1\\   a_2x+b_2y&=&c_2 \end{eqnarray} \]

The included video describes a more direct method of solving when, for example, one of the equations gives a variable directly in terms of the other variable.

6 questions which introduce the student to the Numbas system.

rebelmaths

Sometimes randomisation creates error with variable: c4

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A simultaneous equations question with integers only

Basic solving of linear equations

Straightforward solving linear equations question