Keystones — Bedrock
Five GCSE retrieval questions · 29 July 2025 · mathsvault.uk/keystones
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1. Number Adding whole numbers
Calculate: 25 + 38
Answer: 25 + 38 = 63 -
2. Algebra Substitution
If x = 5, find the value of 3x + 11
Answer: 26 -
3. Geometry Converting lengths
Convert 12cm to mm
Answer: 120mm -
4. Ratio Simplifying ratios
Simplify the ratio 16:20
Answer: 4:5 -
5. Statistics Mean
Find the mean of: 9, 3, 15
Answer: 9