Keystones — Bedrock

Five GCSE retrieval questions · 18 March 2026 · mathsvault.uk/keystones

1. Number

Calculate: 94 + 73

Answer: 94 + 73 = 167
2. Algebra

Simplify: 4x + 8x

Answer: 12x
3. Geometry

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

Answer: 60° (approximately)
4. Ratio

Simplify the ratio 10:8

Answer: 5:4
5. Statistics

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

Answer: ¹⁄₂

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