Keystones — Bedrock

Five GCSE retrieval questions · 18 March 2024 · mathsvault.uk/keystones

1. Number

Calculate: ⁴⁄₁₁ + ²⁄₁₁

Answer: ⁶⁄₁₁
2. Algebra

Solve: x + 15 = 32

Answer: x = 17
3. Geometry

Opposite = 13cm, hypotenuse = 26cm. Find the angle

Answer: 30° (approximately)
4. Ratio

Simplify the ratio 10:25

Answer: 2:5
5. Statistics

Find the mean of: 19, 17, 18, 3

Answer: 14.25

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