Keystones — Bedrock

Five GCSE retrieval questions · 19 October 2023 · mathsvault.uk/keystones

1. Number

Calculate: ³⁄₁₁ + ³⁄₁₁

Answer: ⁶⁄₁₁
2. Algebra

Simplify: 8x + 8x

Answer: 16x
3. Geometry

Opposite = 10cm, hypotenuse = 11.5cm. Find the angle

Answer: 60° (approximately)
4. Ratio

Simplify the ratio 4:14

Answer: 2:7
5. Statistics

Find the mean of: 7, 13, 10, 3, 18

Answer: 10.2

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