Keystones — Cornerstone
Five GCSE retrieval questions · 11 October 2023 · mathsvault.uk/keystones
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1. Number
Calculate: 95 + 66
Answer: 95 + 66 = 161 -
2. Algebra
Solve: x + 9 = 19
Answer: x = 10 -
3. Geometry
Calculate the area of a circle with diameter 11cm
Answer: 95.03cm² -
4. Ratio
Find 69% of 157
Answer: 108.33 -
5. Statistics
Calculate the mean of: 48, 25, 26, 37, 28, 43, 21, 32
Answer: 32.5