Keystones — Cornerstone
Five GCSE retrieval questions · 1 March 2023 · mathsvault.uk/keystones
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1. Number
Calculate: 26 + 58
Answer: 26 + 58 = 84 -
2. Algebra
Solve: 7x - 10 = 2x + 35
Answer: x = 9 -
3. Geometry
Calculate the area of a circle with diameter 23cm
Answer: 415.48cm² -
4. Ratio
Find 21% of 238
Answer: 49.98 -
5. Statistics
Calculate the mean of: 9, 14, 43, 36, 15, 26, 10, 11
Answer: 20.5