Keystones — Bedrock
Five GCSE retrieval questions · 24 September 2025 · mathsvault.uk/keystones
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1. Number Adding whole numbers
Calculate: 37 + 50
Answer: 37 + 50 = 87 -
2. Algebra Substitution
If x = 5, find the value of 6x + 6
Answer: 36 -
3. Geometry Converting lengths
Convert 27cm to mm
Answer: 270mm -
4. Ratio Simplifying ratios
Simplify the ratio 12:6
Answer: 2:1 -
5. Statistics Mean
Find the mean of: 9, 10, 9, 17, 10
Answer: 11