Keystones — Bedrock
Five GCSE retrieval questions · 28 February 2025 · mathsvault.uk/keystones
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1. Number Adding whole numbers
Calculate: 11 + 12
Answer: 11 + 12 = 23 -
2. Algebra Substitution
If x = 9, find the value of 3x + 4
Answer: 31 -
3. Geometry Converting lengths
Convert 3m to cm
Answer: 300cm -
4. Ratio Simplifying ratios
Simplify the ratio 15:40
Answer: 3:8 -
5. Statistics Mean
Find the mean of: 9, 19, 12, 2
Answer: 10.5