Keystones — Lintel

Five GCSE retrieval questions · 16 July 2024 · mathsvault.uk/keystones

1. Number

Calculate: ²⁄₄ + ¹⁄₂ + ²⁄₅

Answer: ⁷⁄₅
2. Algebra

Factorise fully: 15x² + 25x

Answer: 5x(3x + 5)
3. Geometry

Opposite = 15cm, adjacent = 17cm. Calculate the angle

Answer: 41.4°
4. Ratio

Calculate 22.9% of 878

Answer: 201.06
5. Statistics

Find the range of: -7, 39, 10, -15, -26

Answer: 65

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