Keystones — Bedrock
Five GCSE retrieval questions · 21 October 2025 · mathsvault.uk/keystones
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1. Number Adding whole numbers
Calculate: 18 + 25
Answer: 18 + 25 = 43 -
2. Algebra Substitution
If x = 9, find the value of 2x + 7
Answer: 25 -
3. Geometry Converting lengths
Convert 29cm to mm
Answer: 290mm -
4. Ratio Simplifying ratios
Simplify the ratio 10:4
Answer: 5:2 -
5. Statistics Mean
Find the mean of: 11, 13, 5, 12
Answer: 10.25