Keystones — Lintel

Five GCSE retrieval questions · 20 June 2023 · mathsvault.uk/keystones

1. Number

Add: ¹⁄₃ + ²⁄₄

Answer: ⁵⁄₆
2. Algebra

Solve: ^x⁄₃ = 5.6666666666667

Answer: x = 17
3. Geometry

Adjacent = 27cm, hypotenuse = 46cm. Find the angle

Answer: 54.1°
4. Ratio

Simplify: 15:9:9

Answer: 5:3:3
5. Statistics

Calculate the mean of: 24, 50, 44, 6, 7, 8

Answer: 23.2

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