Keystones — Bedrock
Five GCSE retrieval questions · 31 October 2025 · mathsvault.uk/keystones
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1. Number Adding whole numbers
Calculate: 76 + 20
Answer: 76 + 20 = 96 -
2. Algebra Substitution
If x = 10, find the value of 6x + 3
Answer: 63 -
3. Geometry Converting lengths
Convert 11cm to mm
Answer: 110mm -
4. Ratio Simplifying ratios
Simplify the ratio 6:15
Answer: 2:5 -
5. Statistics Mean
Find the mean of: 6, 10, 12, 20
Answer: 12