Keystones — Cornerstone
Five GCSE retrieval questions · 14 July 2026 · mathsvault.uk/keystones
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1. Number
Calculate: 45 + 71
Answer: 45 + 71 = 116 -
2. Algebra
What is the next term? 8, 32, 128, 512, ...
Answer: 2048 -
3. Geometry
Opposite = 11cm, adjacent = 16cm. Calculate the angle
Answer: 34.5° -
4. Ratio
Simplify: 24:8:16
Answer: 3:1:2 -
5. Statistics
Calculate the mean of: 41, 19, 31, 17, 12, 22
Answer: 23.7