Keystones — Lintel

Five GCSE retrieval questions · 3 February 2026 · mathsvault.uk/keystones

1. Number

Calculate: 991 + 683

Answer: 1674
2. Algebra

Solve: ^x⁄₄ = 8.5

Answer: x = 34
3. Geometry

Calculate the distance between (3, 1) and (6, 5)

Answer: 5
4. Ratio

Simplify: 6:4:4

Answer: 3:2:2
5. Statistics

A spinner has 6 red, 4 blue and 6 green sections. Probability of landing on red?

Answer: ³⁄₈

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