Keystones — Bedrock

Five GCSE retrieval questions · 22 January 2025 · mathsvault.uk/keystones

1. Number

Calculate: ⁷⁄₁₁ + ³⁄₁₁

Answer: ¹⁰⁄₁₁
2. Algebra

Simplify: 7x + 9x

Answer: 16x
3. Geometry

Opposite = 13cm, hypotenuse = 18.4cm. Find the angle

Answer: 45° (approximately)
4. Ratio

Simplify the ratio 35:15

Answer: 7:3
5. Statistics

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

Answer: 10.5

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