Keystones — Bedrock
Five GCSE retrieval questions · 31 August 2025 · mathsvault.uk/keystones
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1. Number Adding whole numbers
Calculate: 30 + 47
Answer: 30 + 47 = 77 -
2. Algebra Substitution
If x = 7, find the value of 8x + 6
Answer: 62 -
3. Geometry Converting lengths
Convert 10m to cm
Answer: 1000cm -
4. Ratio Simplifying ratios
Simplify the ratio 15:10
Answer: 3:2 -
5. Statistics Mean
Find the mean of: 16, 6, 3, 8
Answer: 8.25