Keystones — Bedrock
Five GCSE retrieval questions · 8 December 2025 · mathsvault.uk/keystones
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1. Number Adding whole numbers
Calculate: 45 + 40
Answer: 45 + 40 = 85 -
2. Algebra Substitution
If x = 3, find the value of 5x + 3
Answer: 18 -
3. Geometry Converting lengths
Convert 10m to cm
Answer: 1000cm -
4. Ratio Simplifying ratios
Simplify the ratio 15:12
Answer: 5:4 -
5. Statistics Mean
Find the mean of: 11, 9, 20, 12
Answer: 13