Keystones — Bedrock
Five GCSE retrieval questions · 11 August 2025 · mathsvault.uk/keystones
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1. Number Adding whole numbers
Calculate: 39 + 37
Answer: 39 + 37 = 76 -
2. Algebra Substitution
If x = 5, find the value of 3x + 12
Answer: 27 -
3. Geometry Converting lengths
Convert 46cm to mm
Answer: 460mm -
4. Ratio Simplifying ratios
Simplify the ratio 6:15
Answer: 2:5 -
5. Statistics Mean
Find the mean of: 10, 20, 14
Answer: 14.666666666667