Keystones — Cornerstone

Five GCSE retrieval questions · 18 October 2024 · mathsvault.uk/keystones

1. Number

Add: ¹⁄₈ + ¹⁄₆

Answer: ⁷⁄₂₄
2. Algebra

Find the next term: 29, 39, 49, 59, ...

Answer: 69
3. Geometry

Opposite = 5cm, hypotenuse = 5.8cm. Find the angle

Answer: 60° (approximately)
4. Ratio

Simplify the ratio 15:20

Answer: 3:4
5. Statistics

Calculate the mean of: 40, 31, 8, 38, 5, 23, 25, 21

Answer: 23.9

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