Keystones — Lintel

Five GCSE retrieval questions · 13 August 2022 · mathsvault.uk/keystones

1. Number

Calculate: 990 + 829

Answer: 1819
2. Algebra

Solve: ^x⁄₆ = 1.5

Answer: x = 9
3. Geometry

Opposite = 15cm, adjacent = 18cm. Calculate the angle

Answer: 39.8°
4. Ratio

Simplify: 12:18:18

Answer: 2:3:3
5. Statistics

Find the range of: 27, 21, -22, -19, 16

Answer: 49

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