Keystones — Bedrock
Five GCSE retrieval questions · 2 July 2025 · mathsvault.uk/keystones
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1. Number Adding whole numbers
Calculate: 33 + 28
Answer: 33 + 28 = 61 -
2. Algebra Substitution
If x = 4, find the value of 3x + 10
Answer: 22 -
3. Geometry Converting lengths
Convert 50cm to mm
Answer: 500mm -
4. Ratio Simplifying ratios
Simplify the ratio 15:24
Answer: 5:8 -
5. Statistics Mean
Find the mean of: 12, 11, 13
Answer: 12