Keystones — Bedrock
Five GCSE retrieval questions · 2 March 2025 · mathsvault.uk/keystones
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1. Number Adding whole numbers
Calculate: 62 + 21
Answer: 62 + 21 = 83 -
2. Algebra Substitution
If x = 7, find the value of 4x + 11
Answer: 39 -
3. Geometry Converting lengths
Convert 26cm to mm
Answer: 260mm -
4. Ratio Simplifying ratios
Simplify the ratio 30:25
Answer: 6:5 -
5. Statistics Mean
Find the mean of: 20, 17, 11, 11, 7
Answer: 13.2