Keystones — Bedrock

Five GCSE retrieval questions · 1 February 2022 · mathsvault.uk/keystones

1. Number

Calculate: ⁵⁄₁₂ + ²⁄₁₂

Answer: ⁷⁄₁₂
2. Algebra

Find the next term: 12, 20, 28, 36, ...

Answer: 44
3. Geometry

Opposite = 15cm, hypotenuse = 17.3cm. Find the angle

Answer: 60° (approximately)
4. Ratio

Simplify the ratio 16:8

Answer: 2:1
5. Statistics

Find the mean of: 18, 16, 2, 6, 10

Answer: 10.4

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