Keystones — Cornerstone
Five GCSE retrieval questions · 15 February 2026 · mathsvault.uk/keystones
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1. Number
Calculate: 92 + 65
Answer: 92 + 65 = 157 -
2. Algebra
Find the next term: 27, 31, 35, 39, ...
Answer: 43 -
3. Geometry
Opposite = 9cm, adjacent = 14cm. Calculate the angle
Answer: 32.7° -
4. Ratio
Simplify: 15:18:12
Answer: 5:6:4 -
5. Statistics
Calculate the mean of: 14, 49, 37, 19, 32, 22, 30
Answer: 29