Fractions, Decimals, Percentages & Ratio

Year 7

commonFractionsPercentagesDecimals

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  • use equivalence of fractions, decimals and percentages to compare proportions
  • recognise that some fractions are recurring decimals, e.g. 1/3 is 0.333
  • calculate percentages of quantities using non-calculator methods where appropriate
  • use ratio and proportion including map scales

Year 8

  • use equivalence of fractions, decimals and percentages to select the most appropriate for a calculation
  • simplify a calculation by using fractions in their simplest terms
  • calculate a percentage, fraction, decimal of any quantity with a calculator where appropriate
  • calculate the outcome of a given percentage increase or decrease
  • use ratio and proportion to calculate quantities

Year 9

  • use equivalence of fractions, decimals and percentages to select the most appropriate for a calculation
  • use and interpret different representations of fractions, e.g. mixed numbers and improper fractions
  • express one quantity as a percentage of another
  • calculate a percentage increase or decrease
  • use ratio and proportion to calculate quantities

Extension

  • use and understand the idea of reverse percentage to find an original quantity
  • use multipliers as an efficient method when working with percentages, e.g. multiply by 1.2 to increase an amount by 20%
  • use and understand ratio and proportion in 2 dimensions.

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