Keystones — Bedrock

Five GCSE retrieval questions · 21 June 2025 · mathsvault.uk/keystones

1. Number

Calculate: ²⁄₁₂ + ⁴⁄₁₂

Answer: ¹⁄₂
2. Algebra

Factorise: 24x + 6

Answer: 3(8x + 2)
3. Geometry

Opposite = 10cm, hypotenuse = 14.cm. Find the angle

Answer: 45° (approximately)
4. Ratio

Simplify the ratio 35:25

Answer: 7:5
5. Statistics

Find the range of: 29, 30, 20, 33, 33

Answer: 13

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