Keystones — Cornerstone
Five GCSE retrieval questions · 1 November 2022 · mathsvault.uk/keystones
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1. Number Adding fractions
Calculate: 1⁄6 + 3⁄6
Answer: 2⁄3 -
2. Algebra Two-step equations
Solve: 4x + 12 = 32
Answer: x = 5 -
3. Geometry Pythagoras — hypotenuse
Calculate the hypotenuse when a = 5cm and b = 12cm
Answer: 13cm -
4. Ratio Sharing in a ratio
Share 80 in the ratio 3:2
Answer: 48 and 32 -
5. Statistics Mean
Calculate the mean of: 6, 35, 45, 25, 45, 32, 35, 13
Answer: 29.5