Keystones — Lintel

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

1. Number

Add: ⁵⁄₈ + ⁵⁄₇

Answer: ⁷⁵⁄₅₆
2. Algebra

Solve: 6x = 72

Answer: x = 12
3. Geometry

Find c if a = 11cm and b = 10cm in a right triangle

Answer: 14.9cm
4. Ratio

Simplify the ratio 3m:300cm

Answer: 1:100
5. Statistics

Find the range of: 22, -2, 37, 19, -14

Answer: 51

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