Keystones — Bedrock
Five GCSE retrieval questions · 5 November 2025 · mathsvault.uk/keystones
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1. Number Adding whole numbers
Calculate: 29 + 14
Answer: 29 + 14 = 43 -
2. Algebra Substitution
If x = 10, find the value of 3x + 6
Answer: 36 -
3. Geometry Converting lengths
Convert 25cm to mm
Answer: 250mm -
4. Ratio Simplifying ratios
Simplify the ratio 8:24
Answer: 1:3 -
5. Statistics Mean
Find the mean of: 2, 20, 2, 7, 14
Answer: 9