Keystones — Bedrock

Five GCSE retrieval questions · 9 February 2025 · mathsvault.uk/keystones

1. Number

8000

Answer: 8 × 10³
2. Algebra

Solve: x + 6 = 25

Answer: x = 19
3. Geometry

Opposite = 7cm, hypotenuse = 8.cm. Find the angle

Answer: 60° (approximately)
4. Ratio

Simplify the ratio 6:18

Answer: 1:3
5. Statistics

Find the mean of: 9, 8, 5, 6, 16

Answer: 8.8

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