Keystones — Lintel

Five GCSE retrieval questions · 29 October 2022 · mathsvault.uk/keystones

1. Number

Add: ¹⁄₄ + ⁷⁄₈

Answer: ⁹⁄₈
2. Algebra

Solve: 5x - 6 = 3x + 10

Answer: x = 8
3. Geometry

Find c if a = 20cm and b = 12cm in a right triangle

Answer: 23.3cm
4. Ratio

Simplify: 8:6:8

Answer: 4:3:4
5. Statistics

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

Answer: ¹⁄₄

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