Keystones — Bedrock

Five GCSE retrieval questions · 4 December 2025 · mathsvault.uk/keystones

1. Number

Calculate: ¹⁄₁₀ + ⁷⁄₁₀

Answer: ⁴⁄₅
2. Algebra

Factorise: 32x + 12

Answer: 4(8x + 3)
3. Geometry

Opposite = 13cm, hypotenuse = 15cm. Find the angle

Answer: 60° (approximately)
4. Ratio

Simplify the ratio 32:16

Answer: 2:1
5. Statistics

Find the median of: 18, 12, 15, 5, 5

Answer: 12

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