Keystones — Bedrock
Five GCSE retrieval questions · 1 September 2025 · mathsvault.uk/keystones
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1. Number Adding whole numbers
Calculate: 21 + 11
Answer: 21 + 11 = 32 -
2. Algebra Substitution
If x = 3, find the value of 2x + 8
Answer: 14 -
3. Geometry Converting lengths
Convert 10m to cm
Answer: 1000cm -
4. Ratio Simplifying ratios
Simplify the ratio 6:14
Answer: 3:7 -
5. Statistics Mean
Find the mean of: 18, 5, 15, 13
Answer: 12.75