Keystones — Bedrock

Five GCSE retrieval questions · 21 July 2022 · mathsvault.uk/keystones

1. Number

Calculate: ⁵⁄₈ + ¹⁄₈

Answer: ³⁄₄
2. Algebra

Factorise: 15x + 9

Answer: 3(5x + 3)
3. Geometry

Opposite = 15cm, hypotenuse = 30cm. Find the angle

Answer: 30° (approximately)
4. Ratio

Simplify the ratio 35:20

Answer: 7:4
5. Statistics

Find the range of: 17, 6, 10, 13, 21

Answer: 15

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