Keystones — Bedrock
Five GCSE retrieval questions · 28 September 2025 · mathsvault.uk/keystones
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1. Number
Calculate: 2⁄9 + 4⁄9
Answer: 2⁄3 -
2. Algebra
Find the next term: 12, 19, 26, 33, ...
Answer: 40 -
3. Geometry
Opposite = 10cm, hypotenuse = 20cm. Find the angle
Answer: 30° (approximately) -
4. Ratio
Simplify the ratio 8:16
Answer: 1:2 -
5. Statistics
What is the probability of rolling a 6 on a fair die?
Answer: 1⁄6