Keystones — Bedrock
Five GCSE retrieval questions · 18 June 2025 · mathsvault.uk/keystones
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1. Number Adding whole numbers
Calculate: 74 + 63
Answer: 74 + 63 = 137 -
2. Algebra Substitution
If x = 7, find the value of 8x + 9
Answer: 65 -
3. Geometry Converting lengths
Convert 5cm to mm
Answer: 50mm -
4. Ratio Simplifying ratios
Simplify the ratio 8:12
Answer: 2:3 -
5. Statistics Mean
Find the mean of: 17, 12, 5, 4, 17
Answer: 11