Keystones — Cornerstone

Five GCSE retrieval questions · 20 September 2022 · mathsvault.uk/keystones

1. Number

Add: ¹⁄₃ + ³⁄₈

Answer: ¹⁷⁄₂₄
2. Algebra

Solve: x + 6 = 14

Answer: x = 8
3. Geometry

Opposite = 19cm, adjacent = 17cm. Calculate the angle

Answer: 48.2°
4. Ratio

Find 67% of 69

Answer: 46.23
5. Statistics

Find the mean of: 6, 13, 18, 4

Answer: 10.25

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