Keystones — Bedrock
Five GCSE retrieval questions · 7 October 2025 · mathsvault.uk/keystones
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1. Number Adding whole numbers
Calculate: 38 + 37
Answer: 38 + 37 = 75 -
2. Algebra Substitution
If x = 5, find the value of 7x + 3
Answer: 38 -
3. Geometry Converting lengths
Convert 8cm to mm
Answer: 80mm -
4. Ratio Simplifying ratios
Simplify the ratio 28:12
Answer: 7:3 -
5. Statistics Mean
Find the mean of: 7, 2, 16, 3, 15
Answer: 8.6