Keystones — Bedrock

Five GCSE retrieval questions · 22 March 2022 · mathsvault.uk/keystones

1. Number

Calculate: ¹⁄₁₀ + ²⁄₁₀

Answer: ³⁄₁₀
2. Algebra

Expand: 5(x + 4)

Answer: 5x + 20
3. Geometry

Opposite = 12cm, hypotenuse = 13.9cm. Find the angle

Answer: 60° (approximately)
4. Ratio

Simplify the ratio 35:25

Answer: 7:5
5. Statistics

Find the mean of: 2, 4, 17, 20, 16

Answer: 11.8

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