Keystones — Lintel

Five GCSE retrieval questions · 25 May 2026 · mathsvault.uk/keystones

1. Number

Calculate: 828 + 127

Answer: 828 + 127 = 955
2. Algebra

Solve: ^x⁄₃ = 8

Answer: x = 24
3. Geometry

Adjacent = 24cm, hypotenuse = 31cm. Find the angle

Answer: 39.3°
4. Ratio

Simplify the ratio 7m:700cm

Answer: 1:100
5. Statistics

Find the range of: -17, 12, 43, -14, -8

Answer: 60

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