Keystones — Bedrock
Five GCSE retrieval questions · 10 July 2025 · mathsvault.uk/keystones
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1. Number Adding whole numbers
Calculate: 42 + 90
Answer: 42 + 90 = 132 -
2. Algebra Substitution
If x = 4, find the value of 2x + 5
Answer: 13 -
3. Geometry Converting lengths
Convert 33cm to mm
Answer: 330mm -
4. Ratio Simplifying ratios
Simplify the ratio 12:9
Answer: 4:3 -
5. Statistics Mean
Find the mean of: 17, 3, 9, 4, 16
Answer: 9.8