Keystones — Lintel

Five GCSE retrieval questions · 29 June 2026 · mathsvault.uk/keystones

1. Number

The sum of three consecutive numbers is 99. What are the numbers?

Answer: 32, 33, and 34
2. Algebra

Solve: ^x⁄₈ = 3.625

Answer: x = 29
3. Geometry

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

Answer: 48.8°
4. Ratio

Simplify: 12:9:12

Answer: 4:3:4
5. Statistics

Find the range of: -22, -7, 13, 28, 5

Answer: 50

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