Keystones — Lintel

Five GCSE retrieval questions · 30 June 2025 · mathsvault.uk/keystones

1. Number

Add: ⁵⁄₈ + ²⁄₃

Answer: ³¹⁄₂₄
2. Algebra

Solve: ^x⁄₅ = 7.8

Answer: x = 39
3. Geometry

Adjacent = 14cm, hypotenuse = 22cm. Find the angle

Answer: 50.5°
4. Ratio

Simplify the ratio 7m:700cm

Answer: 1:100
5. Statistics

Calculate the mean of: 29, 37, 46, 16, 37, 46

Answer: 35.2

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