Keystones — Lintel

Five GCSE retrieval questions · 5 July 2025 · mathsvault.uk/keystones

1. Number

Add: ⁷⁄₈ + ⁴⁄₅

Answer: ⁶⁷⁄₄₀
2. Algebra

Solve: 6x = 36

Answer: x = 6
3. Geometry

Adjacent = 27cm, hypotenuse = 41cm. Find the angle

Answer: 48.8°
4. Ratio

Find 35% of 478

Answer: 167.3
5. Statistics

Find the range of: 16, 20, -25, 9, -21

Answer: 45

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