Keystones — Bedrock
Five GCSE retrieval questions · 15 October 2025 · mathsvault.uk/keystones
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1. Number Adding whole numbers
Calculate: 71 + 41
Answer: 71 + 41 = 112 -
2. Algebra Substitution
If x = 9, find the value of 3x + 12
Answer: 39 -
3. Geometry Converting lengths
Convert 7m to cm
Answer: 700cm -
4. Ratio Simplifying ratios
Simplify the ratio 15:21
Answer: 5:7 -
5. Statistics Mean
Find the mean of: 15, 3, 11, 14, 6
Answer: 9.8