Keystones — Cornerstone

Five GCSE retrieval questions · 6 August 2025 · mathsvault.uk/keystones

1. Number

Add: ³⁄₄ + ⁴⁄₇

Answer: ³⁷⁄₂₈
2. Algebra

Solve: 2x = 22

Answer: x = 11
3. Geometry

Opposite = 8cm, hypotenuse = 16cm. Find the angle

Answer: 30° (approximately)
4. Ratio

Find 45% of 461

Answer: 207.45
5. Statistics

Calculate the mean of: 21, 45, 14, 47, 43, 24, 21

Answer: 30.7

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