Keystones — Bedrock

Five GCSE retrieval questions · 27 June 2025 · mathsvault.uk/keystones

1. Number

Calculate: 24 + 20

Answer: 24 + 20 = 44
2. Algebra

Simplify: 3x + 4x

Answer: 7x
3. Geometry

Opposite = 13cm, hypotenuse = 18.4cm. Find the angle

Answer: 45° (approximately)
4. Ratio

Simplify the ratio 8:12

Answer: 2:3
5. Statistics

What is the probability of getting heads when flipping a fair coin?

Answer: ¹⁄₂

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