Keystones — Bedrock
Five GCSE retrieval questions · 10 October 2025 · mathsvault.uk/keystones
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1. Number
Calculate: 30 + 81
Answer: 30 + 81 = 111 -
2. Algebra
Find the next term: 16, 19, 22, 25, ...
Answer: 28 -
3. Geometry
Opposite = 12cm, hypotenuse = 13.9cm. Find the angle
Answer: 60° (approximately) -
4. Ratio
Simplify the ratio 10:12
Answer: 5:6 -
5. Statistics
Find the mean of: 17, 16, 10, 18
Answer: 15.25