Keystones — Bedrock

Five GCSE retrieval questions · 23 August 2023 · mathsvault.uk/keystones

1. Number

Calculate: ⁵⁄₁₀ + ³⁄₁₀

Answer: ⁴⁄₅
2. Algebra

Find the next term: 7, 13, 19, 25, ...

Answer: 31
3. Geometry

Opposite = 8cm, hypotenuse = 9.2cm. Find the angle

Answer: 60° (approximately)
4. Ratio

Simplify the ratio 40:10

Answer: 4:1
5. Statistics

Find the mean of: 10, 12, 9, 8

Answer: 9.75

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