Keystones — Bedrock

Five GCSE retrieval questions · 30 August 2024 · mathsvault.uk/keystones

1. Number

400000

Answer: 4 × 10⁵
2. Algebra

Simplify: 2x + 4x

Answer: 6x
3. Geometry

Opposite = 15cm, hypotenuse = 30cm. Find the angle

Answer: 30° (approximately)
4. Ratio

Calculate 50% of 30

Answer: 15
5. Statistics

Find the mean of: 7, 11, 19

Answer: 12.333333333333

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