Keystones — Bedrock
Five GCSE retrieval questions · 16 October 2025 · mathsvault.uk/keystones
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1. Number Adding whole numbers
Calculate: 49 + 29
Answer: 49 + 29 = 78 -
2. Algebra Substitution
If x = 10, find the value of 2x + 7
Answer: 27 -
3. Geometry Converting lengths
Convert 5m to cm
Answer: 500cm -
4. Ratio Simplifying ratios
Simplify the ratio 12:24
Answer: 1:2 -
5. Statistics Mean
Find the mean of: 17, 5, 16
Answer: 12.666666666667