Keystones — Lintel

Five GCSE retrieval questions · 29 October 2025 · mathsvault.uk/keystones

1. Number

87000

Answer: 8.7 × 10⁴
2. Algebra

Find the next term: 1, 2, 4, 7, ...

Answer: 11
3. Geometry

Adjacent = 22cm, hypotenuse = 34cm. Find the angle

Answer: 49.7°
4. Ratio

Find 41% of 130

Answer: 53.3
5. Statistics

A spinner has 3 red, 6 blue and 4 green sections. Probability of landing on red?

Answer: ³⁄₁₃

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