Keystones — Bedrock
Five GCSE retrieval questions · 18 November 2025 · mathsvault.uk/keystones
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1. Number Adding whole numbers
Calculate: 39 + 32
Answer: 39 + 32 = 71 -
2. Algebra Substitution
If x = 4, find the value of 6x + 3
Answer: 27 -
3. Geometry Converting lengths
Convert 12m to cm
Answer: 1200cm -
4. Ratio Simplifying ratios
Simplify the ratio 15:21
Answer: 5:7 -
5. Statistics Mean
Find the mean of: 2, 16, 12, 13, 13
Answer: 11.2