Keystones — Lintel

Five GCSE retrieval questions · 11 October 2023 · mathsvault.uk/keystones

1. Number

Calculate: 997 + 789

Answer: 1786
2. Algebra

Solve: ^x⁄₄ = 1.75

Answer: x = 7
3. Geometry

Adjacent = 25cm, hypotenuse = 37cm. Find the angle

Answer: 47.5°
4. Ratio

Simplify: 6:12:6

Answer: 1:2:1
5. Statistics

Find the range of: 24, -19, 24, -16, -27

Answer: 51

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