Keystones — Lintel

Five GCSE retrieval questions · 29 October 2024 · mathsvault.uk/keystones

1. Number

Calculate: 996 + 576

Answer: 1572
2. Algebra

Solve: ^x⁄₇ = 1

Answer: x = 7
3. Geometry

Find c if a = 19cm and b = 20cm in a right triangle

Answer: 27.6cm
4. Ratio

Simplify: 10:6:6

Answer: 5:3:3
5. Statistics

Find the range of: 20, -19, -6, 12, -26

Answer: 46

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