Keystones — Bedrock
Five GCSE retrieval questions · 17 November 2025 · mathsvault.uk/keystones
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1. Number Adding whole numbers
Calculate: 36 + 90
Answer: 36 + 90 = 126 -
2. Algebra Substitution
If x = 3, find the value of 6x + 10
Answer: 28 -
3. Geometry Converting lengths
Convert 28cm to mm
Answer: 280mm -
4. Ratio Simplifying ratios
Simplify the ratio 24:12
Answer: 2:1 -
5. Statistics Mean
Find the mean of: 7, 18, 8, 2, 7
Answer: 8.4