Keystones — Bedrock
Five GCSE retrieval questions · 7 August 2026 · mathsvault.uk/keystones
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1. Number
Calculate: 31 + 11
Answer: 31 + 11 = 42 -
2. Algebra
Factorise: 18x + 21
Answer: 3(6x + 7) -
3. Geometry
Opposite = 13cm, hypotenuse = 26cm. Find the angle
Answer: 30° (approximately) -
4. Ratio
Simplify the ratio 24:15
Answer: 8:5 -
5. Statistics
Find the mean of: 10, 17, 3
Answer: 10