Keystones — Bedrock
Five GCSE retrieval questions · 4 May 2026 · mathsvault.uk/keystones
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1. Number
Calculate: 1 + (-2)
Answer: -1 -
2. Algebra
Solve: x + 4 = 18
Answer: x = 14 -
3. Geometry
Opposite = 11cm, hypotenuse = 12.7cm. Find the angle
Answer: 60° (approximately) -
4. Ratio
Simplify the ratio 12:6
Answer: 2:1 -
5. Statistics
What is the probability of getting heads when flipping a fair coin?
Answer: 1⁄2