Keystones — Lintel

Five GCSE retrieval questions · 12 May 2026 · mathsvault.uk/keystones

1. Number

Add: ¹⁄₅ + ²⁄₃

Answer: ¹³⁄₁₅
2. Algebra

Solve: 7x = 63

Answer: x = 9
3. Geometry

Adjacent = 18cm, hypotenuse = 26cm. Find the angle

Answer: 46.2°
4. Ratio

Calculate 49.2% of 527

Answer: 259.28
5. Statistics

A spinner has 5 red, 2 blue and 3 green sections. Probability of landing on red?

Answer: ¹⁄₂

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