Keystones — Bedrock
Five GCSE retrieval questions · 10 July 2025 · mathsvault.uk/keystones
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1. Number
Calculate: 5⁄10 + 1⁄10
Answer: 3⁄5 -
2. Algebra
Simplify: 2x + 8x
Answer: 10x -
3. Geometry
Opposite = 13cm, hypotenuse = 26cm. Find the angle
Answer: 30° (approximately) -
4. Ratio
Simplify the ratio 12:4
Answer: 3:1 -
5. Statistics
Find the mean of: 9, 19, 4, 10
Answer: 10.5