Keystones — Bedrock
Five GCSE retrieval questions · 9 October 2025 · mathsvault.uk/keystones
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1. Number Adding whole numbers
Calculate: 99 + 92
Answer: 99 + 92 = 191 -
2. Algebra Substitution
If x = 5, find the value of 6x + 11
Answer: 41 -
3. Geometry Converting lengths
Convert 35cm to mm
Answer: 350mm -
4. Ratio Simplifying ratios
Simplify the ratio 8:28
Answer: 2:7 -
5. Statistics Mean
Find the mean of: 16, 9, 20, 11
Answer: 14