Keystones — Bedrock
Five GCSE retrieval questions · 21 November 2025 · mathsvault.uk/keystones
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1. Number Adding whole numbers
Calculate: 30 + 45
Answer: 30 + 45 = 75 -
2. Algebra Substitution
If x = 6, find the value of 7x + 5
Answer: 47 -
3. Geometry Converting lengths
Convert 41cm to mm
Answer: 410mm -
4. Ratio Simplifying ratios
Simplify the ratio 30:10
Answer: 3:1 -
5. Statistics Mean
Find the mean of: 8, 4, 4
Answer: 5.3333333333333