Keystones — Bedrock
Five GCSE retrieval questions · 13 October 2025 · mathsvault.uk/keystones
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1. Number Adding whole numbers
Calculate: 10 + 24
Answer: 10 + 24 = 34 -
2. Algebra Substitution
If x = 8, find the value of 5x + 12
Answer: 52 -
3. Geometry Converting lengths
Convert 8m to cm
Answer: 800cm -
4. Ratio Simplifying ratios
Simplify the ratio 30:20
Answer: 3:2 -
5. Statistics Mean
Find the mean of: 8, 4, 17
Answer: 9.6666666666667