Keystones — Bedrock
Five GCSE retrieval questions · 6 August 2025 · mathsvault.uk/keystones
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1. Number Adding whole numbers
Calculate: 23 + 38
Answer: 23 + 38 = 61 -
2. Algebra Substitution
If x = 2, find the value of 3x + 9
Answer: 15 -
3. Geometry Converting lengths
Convert 8cm to mm
Answer: 80mm -
4. Ratio Simplifying ratios
Simplify the ratio 4:8
Answer: 1:2 -
5. Statistics Mean
Find the mean of: 7, 20, 12, 19, 2
Answer: 12