Keystones — Bedrock

Five GCSE retrieval questions · 26 November 2023 · mathsvault.uk/keystones

1. Number

Calculate: ²⁄₁₁ + ⁸⁄₁₁

Answer: ¹⁰⁄₁₁
2. Algebra

Find the next term: 20, 23, 26, 29, ...

Answer: 32
3. Geometry

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

Answer: 30° (approximately)
4. Ratio

Simplify the ratio 25:35

Answer: 5:7
5. Statistics

Find the mean of: 10, 9, 9, 9

Answer: 9.25

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