Keystones — Cornerstone
Five GCSE retrieval questions · 1 July 2026 · mathsvault.uk/keystones
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1. Number
Calculate: 180 + 714
Answer: 180 + 714 = 894 -
2. Algebra
Solve: 3x = 15
Answer: x = 5 -
3. Geometry
Calculate the area of a circle with diameter 17cm
Answer: 226.98cm² -
4. Ratio
Find 15% of 346
Answer: 51.9 -
5. Statistics
Calculate the mean of: 47, 39, 10, 27, 49, 48, 16
Answer: 33.7