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Ratio

Directed numbers

How to add and subtract positive and negative numbersLearn how to add and subtract positive and negative numbers with BBC Bitesize Maths. For students between the ages of 11 and 14.

Understand & use algebraic notation

Recognise and Describe 2D and 3D shapes

Perimeter, Area, Volume

Percentages

How to increase an amount by a percentageHow to calculate a percentage increase by calculating the percentage increase and adding on to the original amount and a one stage process using the appropriate multiplier

How to decrease an amount by a percentageHow to calculate a percentage decrease by calculating the percentage decrease and subtracting from the original amount and a one stage process using the appropriate multiplier

How to find the original value before percentage offLearn and revise percentage increase and decrease and how to calculate the original value of a percentage before percentage off in this KS3 maths guide.

How to work out interestFind out how to work out interest on an amount with a visual, step-by-step guide. Aimed at students aged 11-14.

How to calculate percentagesHow to find a percentage of a given amount using mental methods Find a percentage of a given amount using a calculator

Bar Chart

Bar chartsLearn about bar charts with this BBC Bitesize Maths article. For students between the ages of 11 and 14.

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