Keystones — Capstone

Five GCSE retrieval questions · 26 January 2025 · mathsvault.uk/keystones

1. Number

0.0026

Answer: 2.6 × 10^-3
2. Algebra

Solve: ^x⁄₇ = 3

Answer: x = 21
3. Geometry

Adjacent = 15cm, hypotenuse = 25cm. Find the angle

Answer: 53.1°
4. Ratio

Calculate 10% of 373

Answer: 37.3
5. Statistics

A spinner has 4 red, 3 blue and 5 green sections. Probability of landing on red?

Answer: ¹⁄₃

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