Keystones — Bedrock
Five GCSE retrieval questions · 19 May 2025 · mathsvault.uk/keystones
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1. Number
Calculate: 2⁄5 + 2⁄5
Answer: 4⁄5 -
2. Algebra
Find the next term: 8, 17, 26, 35, ...
Answer: 44 -
3. Geometry
Opposite = 15cm, hypotenuse = 30cm. Find the angle
Answer: 30° (approximately) -
4. Ratio
Simplify the ratio 20:40
Answer: 1:2 -
5. Statistics
What is the probability of getting heads when flipping a fair coin?
Answer: 1⁄2