Keystones — Lintel

Five GCSE retrieval questions · 12 December 2024 · mathsvault.uk/keystones

1. Number

Calculate: 641 + 814

Answer: 641 + 814 = 1455
2. Algebra

Solve: ^x⁄₅ = 1.6

Answer: x = 8
3. Geometry

Find perimeter: adjacent = 12cm, angle = 44°

Answer: 40.3cm
4. Ratio

Simplify: 16:20:16

Answer: 4:5:4
5. Statistics

A spinner has 2 red, 3 blue and 5 green sections. Probability of landing on red?

Answer: ¹⁄₅

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