Keystones — Bedrock
Five GCSE retrieval questions · 25 September 2025 · mathsvault.uk/keystones
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1. Number Adding whole numbers
Calculate: 42 + 45
Answer: 42 + 45 = 87 -
2. Algebra Substitution
If x = 6, find the value of 4x + 10
Answer: 34 -
3. Geometry Converting lengths
Convert 15m to cm
Answer: 1500cm -
4. Ratio Simplifying ratios
Simplify the ratio 12:16
Answer: 3:4 -
5. Statistics Mean
Find the mean of: 5, 11, 17, 18, 20
Answer: 14.2