Keystones — Lintel

Five GCSE retrieval questions · 24 March 2026 · mathsvault.uk/keystones

1. Number

Calculate: 405 + 716

Answer: 405 + 716 = 1121
2. Algebra

Factorise: 7x² + 4x

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

Calculate the distance between (1, 7) and (4, 11)

Answer: 5
4. Ratio

Simplify: 10:6:6

Answer: 5:3:3
5. Statistics

A spinner has 2 red, 2 blue and 3 green sections. Probability of landing on red?

Answer: ²⁄₇

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