Keystones — Lintel

Five GCSE retrieval questions · 26 May 2026 · mathsvault.uk/keystones

1. Number

Calculate: 990 + 716

Answer: 1706
2. Algebra

Solve: ^x⁄₆ = 3.8333333333333

Answer: x = 23
3. Geometry

Opposite = 15cm, adjacent = 14cm. Calculate the angle

Answer: 47°
4. Ratio

Simplify the ratio 7m:700cm

Answer: 1:100
5. Statistics

Find the range of: -29, 36, -29, 44, -22

Answer: 73

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