Keystones — Cornerstone
Five GCSE retrieval questions · 23 July 2026 · mathsvault.uk/keystones
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1. Number
Calculate: 79 + 45
Answer: 79 + 45 = 124 -
2. Algebra
Simplify: 7x + 7x
Answer: 14x -
3. Geometry
Calculate the area of a circle with diameter 24cm
Answer: 452.39cm² -
4. Ratio
Find 57% of 370
Answer: 210.9 -
5. Statistics
Calculate the mean of: 11, 16, 40, 12, 7, 8
Answer: 15.7