Keystones — Bedrock

Five GCSE retrieval questions · 2 May 2024 · mathsvault.uk/keystones

1. Number

Calculate: ⁹⁄₁₁ + ¹⁄₁₁

Answer: ¹⁰⁄₁₁
2. Algebra

Simplify: 2x + 2x

Answer: 4x
3. Geometry

Opposite = 14cm, hypotenuse = 16.2cm. Find the angle

Answer: 60° (approximately)
4. Ratio

Simplify the ratio 9:21

Answer: 3:7
5. Statistics

Find the mean of: 18, 8, 4

Answer: 10

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