Number — GCSE Revision Notes

4 notes on Number for GCSE Maths.

Factors, Multiples and Primes (HCF & LCM)A factor of a number divides into it exactly (no remainder). Factors… Fractions, Decimals and PercentagesFractions, decimals and percentages are three ways of writing a… Indices and Standard FormAn index (plural indices), or power, shows how many times a number is… Ratio and ProportionA ratio compares amounts, showing how much of one thing there is…

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