Keystones — Bedrock
Five GCSE retrieval questions · 4 October 2025 · mathsvault.uk/keystones
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1. Number Adding whole numbers
Calculate: 72 + 77
Answer: 72 + 77 = 149 -
2. Algebra Substitution
If x = 7, find the value of 6x + 5
Answer: 47 -
3. Geometry Converting lengths
Convert 40cm to mm
Answer: 400mm -
4. Ratio Simplifying ratios
Simplify the ratio 40:10
Answer: 4:1 -
5. Statistics Mean
Find the mean of: 9, 12, 16
Answer: 12.333333333333