Keystones — Cornerstone
Five GCSE retrieval questions · 7 June 2026 · mathsvault.uk/keystones
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1. Number
Calculate: 34 + 52
Answer: 34 + 52 = 86 -
2. Algebra
Solve: 6x = 30
Answer: x = 5 -
3. Geometry
Opposite = 11cm, hypotenuse = 12.7cm. Find the angle
Answer: 60° (approximately) -
4. Ratio
Find 84% of 277
Answer: 232.68 -
5. Statistics
Calculate the mean of: 20, 32, 32, 25, 42, 37, 40, 43
Answer: 33.9