GCSE Maths

Number and ratio
revision.

Fractions, decimals, percentages, ratio, proportion, indices and standard form — the number skills every paper still tests.

Number and ratio guides

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Build the argument.

01

Fractions, decimals and percentages

Convert fluently between fractions, decimals and percentages, then use multipliers for increase, decrease and reverse percentage.

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Ratio and proportion

Share amounts in a ratio, scale recipes, and distinguish direct proportion from inverse proportion with a unitary method.

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Indices and standard form

Use the index laws with confidence and write large or small numbers in standard form for science-style GCSE questions.

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Keep going

More GCSE Maths
in the same style.

GCSE Maths revision that treats method as the mark scheme: fractions, ratio, algebra, graphs, trigonometry, Pythagoras, circle theorems and probability, with working shown line by line.

All Maths revision