Keystones — Bedrock

Five GCSE retrieval questions · 9 August 2023 · mathsvault.uk/keystones

1. Number

Calculate: ⁶⁄₁₂ + ¹⁄₁₂

Answer: ⁷⁄₁₂
2. Algebra

Simplify: 8x + 9x

Answer: 17x
3. Geometry

Opposite = 5cm, hypotenuse = 10cm. Find the angle

Answer: 30° (approximately)
4. Ratio

Simplify the ratio 16:14

Answer: 8:7
5. Statistics

Find the mean of: 3, 18, 9

Answer: 10

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