Keystones — Bedrock
Five GCSE retrieval questions · 13 February 2026 · mathsvault.uk/keystones
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1. Number
Calculate: 2⁄5 + 2⁄5
Answer: 4⁄5 -
2. Algebra
Simplify: 3x + 4x
Answer: 7x -
3. Geometry
Opposite = 14cm, hypotenuse = 16.2cm. Find the angle
Answer: 60° (approximately) -
4. Ratio
Simplify the ratio 18:21
Answer: 6:7 -
5. Statistics
Find the range of: 24, 31, 24, 19, 41
Answer: 22