Keystones — Bedrock
Five GCSE retrieval questions · 19 December 2025 · mathsvault.uk/keystones
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1. Number Adding whole numbers
Calculate: 32 + 46
Answer: 32 + 46 = 78 -
2. Algebra Substitution
If x = 9, find the value of 5x + 12
Answer: 57 -
3. Geometry Converting lengths
Convert 15cm to mm
Answer: 150mm -
4. Ratio Simplifying ratios
Simplify the ratio 24:12
Answer: 2:1 -
5. Statistics Mean
Find the mean of: 11, 9, 14, 11, 16
Answer: 12.2