Keystones — Bedrock
Five GCSE retrieval questions · 12 December 2025 · mathsvault.uk/keystones
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1. Number Adding whole numbers
Calculate: 60 + 32
Answer: 60 + 32 = 92 -
2. Algebra Substitution
If x = 7, find the value of 4x + 9
Answer: 37 -
3. Geometry Converting lengths
Convert 4m to cm
Answer: 400cm -
4. Ratio Simplifying ratios
Simplify the ratio 9:21
Answer: 3:7 -
5. Statistics Mean
Find the mean of: 3, 2, 7, 12, 12
Answer: 7.2