Keystones — Lintel

Five GCSE retrieval questions · 21 June 2025 · mathsvault.uk/keystones

1. Number

Add: ³⁄₄ + ²⁄₃

Answer: ¹⁷⁄₁₂
2. Algebra

Factorise fully: 16x² + 8x

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

Opposite = 9cm, adjacent = 14cm. Calculate the angle

Answer: 32.7°
4. Ratio

Find 38% of 59

Answer: 22.42
5. Statistics

Find the range of: 15, -21, 0, 8, 28

Answer: 49

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