Keystones — Bedrock

Five GCSE retrieval questions · 2 April 2025 · mathsvault.uk/keystones

1. Number

Simplify: 5⁵ × 5²

Answer: 5⁷
2. Algebra

Solve: x + 7 = 12

Answer: x = 5
3. Geometry

Opposite = 12cm, hypotenuse = 13.9cm. Find the angle

Answer: 60° (approximately)
4. Ratio

Calculate 25% of 163

Answer: 40.75
5. Statistics

Find the range of: 13, 13, 19, 36, 18

Answer: 23

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