Puzzle
NumberPuzzle
Four Fours:Percentage multipliers
Sixteen ways of changing an amount, sorted into four multipliers. Increasing by 10% twice is not the same as increasing by 20%, and both are here. Two per A4.
A free key stage 3 and GCSE number puzzle with answers, spec codes R9 and R16. It goes with the lesson on compound growth and decay.
Lesson
Compound growth and decay
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