Keystones — Bedrock
Five GCSE retrieval questions · 25 October 2025 · mathsvault.uk/keystones
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1. Number Adding whole numbers
Calculate: 63 + 30
Answer: 63 + 30 = 93 -
2. Algebra Substitution
If x = 4, find the value of 5x + 5
Answer: 25 -
3. Geometry Converting lengths
Convert 8m to cm
Answer: 800cm -
4. Ratio Simplifying ratios
Simplify the ratio 6:10
Answer: 3:5 -
5. Statistics Mean
Find the mean of: 17, 14, 9, 11, 18
Answer: 13.8