Keystones — Bedrock

Five GCSE retrieval questions · 12 July 2026 · mathsvault.uk/keystones

1. Number

Calculate: ¹⁄₁₁ + ¹⁄₁₁

Answer: ²⁄₁₁
2. Algebra

Factorise: 24x + 18

Answer: 3(8x + 6)
3. Geometry

Opposite = 10cm, hypotenuse = 11.5cm. Find the angle

Answer: 60° (approximately)
4. Ratio

Simplify the ratio 10:4

Answer: 5:2
5. Statistics

Find the mean of: 6, 7, 2, 4, 12

Answer: 6.2

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