Keystones — Bedrock

Five GCSE retrieval questions · 3 August 2022 · mathsvault.uk/keystones

1. Number

Calculate: ⁸⁄₁₂ + ²⁄₁₂

Answer: ⁵⁄₆
2. Algebra

Simplify: 7x + 8x

Answer: 15x
3. Geometry

Opposite = 7cm, hypotenuse = 9.9cm. Find the angle

Answer: 45° (approximately)
4. Ratio

Simplify the ratio 28:20

Answer: 7:5
5. Statistics

Find the mean of: 2, 19, 19, 7, 5

Answer: 10.4

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