Keystones — Bedrock

Five GCSE retrieval questions · 31 March 2022 · mathsvault.uk/keystones

1. Number

Calculate: ²⁄₁₀ + ⁵⁄₁₀

Answer: ⁷⁄₁₀
2. Algebra

Find the next term: 20, 24, 28, 32, ...

Answer: 36
3. Geometry

Opposite = 14cm, hypotenuse = 28cm. Find the angle

Answer: 30° (approximately)
4. Ratio

Simplify the ratio 20:24

Answer: 5:6
5. Statistics

Find the mean of: 19, 6, 9

Answer: 11.333333333333

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