Keystones — Bedrock
Five GCSE retrieval questions · 25 November 2025 · mathsvault.uk/keystones
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1. Number Adding whole numbers
Calculate: 28 + 83
Answer: 28 + 83 = 111 -
2. Algebra Substitution
If x = 5, find the value of 6x + 12
Answer: 42 -
3. Geometry Converting lengths
Convert 17m to cm
Answer: 1700cm -
4. Ratio Simplifying ratios
Simplify the ratio 25:40
Answer: 5:8 -
5. Statistics Mean
Find the mean of: 6, 5, 4, 6, 7
Answer: 5.6