Keystones — Bedrock
Five GCSE retrieval questions · 8 November 2025 · mathsvault.uk/keystones
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1. Number Adding whole numbers
Calculate: 32 + 21
Answer: 32 + 21 = 53 -
2. Algebra Substitution
If x = 10, find the value of 8x + 5
Answer: 85 -
3. Geometry Converting lengths
Convert 4m to cm
Answer: 400cm -
4. Ratio Simplifying ratios
Simplify the ratio 28:24
Answer: 7:6 -
5. Statistics Mean
Find the mean of: 13, 17, 6
Answer: 12