Keystones — Cornerstone
Five GCSE retrieval questions · 24 February 2022 · mathsvault.uk/keystones
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1. Number Adding fractions
Calculate: 5⁄8 + 1⁄8
Answer: 3⁄4 -
2. Algebra Two-step equations
Solve: 2x - 11 = 9
Answer: x = 10 -
3. Geometry Pythagoras — hypotenuse
Calculate the hypotenuse when a = 5cm and b = 11cm
Answer: 12.08cm -
4. Ratio Sharing in a ratio
Share 49 in the ratio 4:3
Answer: 28 and 21 -
5. Statistics Mean
Find the mean of: 6, 20, 4
Answer: 10