Keystones — Lintel

Five GCSE retrieval questions · 27 October 2024 · mathsvault.uk/keystones

1. Number

Add: ²⁄₆ + ⁷⁄₈

Answer: ²⁹⁄₂₄
2. Algebra

Factorise: 4x² + 8x

Answer: 4x(x + 2)
3. Geometry

Calculate the hypotenuse when a = 7cm and b = 5cm

Answer: 8.6cm
4. Ratio

Simplify: 9:15:15

Answer: 3:5:5
5. Statistics

Calculate the mean of: 10, 47, 48, 27, 41, 14, 50, 29

Answer: 33.3

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