Keystones — Cornerstone
Five GCSE retrieval questions · 18 March 2026 · mathsvault.uk/keystones
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1. Number
Calculate: 22 + 52
Answer: 22 + 52 = 74 -
2. Algebra
Factorise: 20x + 16
Answer: 4(5x + 4) -
3. Geometry
Opposite = 10cm, adjacent = 11cm. Calculate the angle
Answer: 42.3° -
4. Ratio
Simplify the ratio 4:14
Answer: 2:7 -
5. Statistics
Find the range of: 16, 22, 19, 5, 9
Answer: 17