Keystones — Bedrock
Five GCSE retrieval questions · 6 September 2025 · mathsvault.uk/keystones
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1. Number Adding whole numbers
Calculate: 30 + 36
Answer: 30 + 36 = 66 -
2. Algebra Substitution
If x = 5, find the value of 6x + 10
Answer: 40 -
3. Geometry Converting lengths
Convert 5m to cm
Answer: 500cm -
4. Ratio Simplifying ratios
Simplify the ratio 8:20
Answer: 2:5 -
5. Statistics Mean
Find the mean of: 18, 13, 5, 6
Answer: 10.5