Keystones — Bedrock
Five GCSE retrieval questions · 17 August 2025 · mathsvault.uk/keystones
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1. Number Adding whole numbers
Calculate: 22 + 48
Answer: 22 + 48 = 70 -
2. Algebra Substitution
If x = 4, find the value of 3x + 5
Answer: 17 -
3. Geometry Converting lengths
Convert 18m to cm
Answer: 1800cm -
4. Ratio Simplifying ratios
Simplify the ratio 20:12
Answer: 5:3 -
5. Statistics Mean
Find the mean of: 3, 18, 19, 11, 8
Answer: 11.8