Keystones — Bedrock
Five GCSE retrieval questions · 1 May 2025 · mathsvault.uk/keystones
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1. Number Adding whole numbers
Calculate: 50 + 72
Answer: 50 + 72 = 122 -
2. Algebra Substitution
If x = 8, find the value of 2x + 12
Answer: 28 -
3. Geometry Converting lengths
Convert 16cm to mm
Answer: 160mm -
4. Ratio Simplifying ratios
Simplify the ratio 12:16
Answer: 3:4 -
5. Statistics Mean
Find the mean of: 14, 10, 10, 12, 15
Answer: 12.2