Keystones — Bedrock

Five GCSE retrieval questions · 19 August 2024 · mathsvault.uk/keystones

1. Number

Calculate: ¹⁄₁₁ + ⁹⁄₁₁

Answer: ¹⁰⁄₁₁
2. Algebra

Factorise: 40x + 20

Answer: 5(8x + 4)
3. Geometry

Opposite = 13cm, hypotenuse = 15cm. Find the angle

Answer: 60° (approximately)
4. Ratio

Simplify the ratio 28:24

Answer: 7:6
5. Statistics

Find the mean of: 14, 6, 12, 7

Answer: 9.75

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