Keystones — Bedrock

Five GCSE retrieval questions · 21 June 2026 · mathsvault.uk/keystones

1. Number

Calculate: ¹⁄₇ + ²⁄₇

Answer: ³⁄₇
2. Algebra

Factorise: 28x + 12

Answer: 4(7x + 3)
3. Geometry

Opposite = 11cm, hypotenuse = 15.6cm. Find the angle

Answer: 45° (approximately)
4. Ratio

Simplify the ratio 21:12

Answer: 7:4
5. Statistics

Find the range of: 40, 18, 26, 14, 13

Answer: 27

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