Keystones — Cornerstone

Five GCSE retrieval questions · 26 November 2022 · mathsvault.uk/keystones

1. Number

Add: ¹⁄₈ + ¹⁄₃

Answer: ¹¹⁄₂₄
2. Algebra

Simplify: 7x + 6x

Answer: 13x
3. Geometry

Opposite = 12cm, adjacent = 14cm. Calculate the angle

Answer: 40.6°
4. Ratio

Simplify the ratio 9:24

Answer: 3:8
5. Statistics

Calculate the mean of: 36, 10, 27, 20, 23, 31, 6

Answer: 21.9

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