Keystones — Bedrock

Five GCSE retrieval questions · 7 July 2026 · mathsvault.uk/keystones

1. Number

Calculate: ⁴⁄₈ + ³⁄₈

Answer: ⁷⁄₈
2. Algebra

Simplify: 7x + 2x

Answer: 9x
3. Geometry

Opposite = 15cm, hypotenuse = 17.3cm. Find the angle

Answer: 60° (approximately)
4. Ratio

Simplify the ratio 12:28

Answer: 3:7
5. Statistics

Find the mean of: 19, 8, 11, 17

Answer: 13.75

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