Keystones — Bedrock
Five GCSE retrieval questions · 14 August 2025 · mathsvault.uk/keystones
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1. Number Adding whole numbers
Calculate: 71 + 66
Answer: 71 + 66 = 137 -
2. Algebra Substitution
If x = 4, find the value of 3x + 7
Answer: 19 -
3. Geometry Converting lengths
Convert 10m to cm
Answer: 1000cm -
4. Ratio Simplifying ratios
Simplify the ratio 16:10
Answer: 8:5 -
5. Statistics Mean
Find the mean of: 17, 4, 4, 11, 7
Answer: 8.6