Keystones — Bedrock

Five GCSE retrieval questions · 8 July 2022 · mathsvault.uk/keystones

1. Number

Calculate: ³⁄₁₀ + ⁶⁄₁₀

Answer: ⁹⁄₁₀
2. Algebra

Simplify: 9x + 9x

Answer: 18x
3. Geometry

Opposite = 8cm, hypotenuse = 16cm. Find the angle

Answer: 30° (approximately)
4. Ratio

Simplify the ratio 6:10

Answer: 3:5
5. Statistics

Find the mean of: 10, 18, 11, 15

Answer: 13.5

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