Keystones — Lintel

Five GCSE retrieval questions · 2 March 2025 · mathsvault.uk/keystones

1. Number

Calculate: ¹⁄₂ + ²⁄₃ + ¹⁄₃

Answer: ³⁄₂
2. Algebra

Factorise fully: 8x² + 24x

Answer: 4x(2x + 6)
3. Geometry

Opposite = 20cm, adjacent = 9cm. Calculate the angle

Answer: 65.8°
4. Ratio

Simplify: 8:8:16

Answer: 1:1:2
5. Statistics

Find the range of: 13, -14, 41, 50, 14

Answer: 64

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