Keystones — Bedrock
Five GCSE retrieval questions · 27 July 2025 · mathsvault.uk/keystones
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1. Number Adding whole numbers
Calculate: 77 + 72
Answer: 77 + 72 = 149 -
2. Algebra Substitution
If x = 2, find the value of 2x + 12
Answer: 16 -
3. Geometry Converting lengths
Convert 18m to cm
Answer: 1800cm -
4. Ratio Simplifying ratios
Simplify the ratio 14:12
Answer: 7:6 -
5. Statistics Mean
Find the mean of: 20, 8, 2, 19, 6
Answer: 11