Keystones — Bedrock
Five GCSE retrieval questions · 3 August 2025 · mathsvault.uk/keystones
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1. Number Adding whole numbers
Calculate: 17 + 23
Answer: 17 + 23 = 40 -
2. Algebra Substitution
If x = 4, find the value of 8x + 11
Answer: 43 -
3. Geometry Converting lengths
Convert 43cm to mm
Answer: 430mm -
4. Ratio Simplifying ratios
Simplify the ratio 14:8
Answer: 7:4 -
5. Statistics Mean
Find the mean of: 2, 18, 4, 8, 4
Answer: 7.2