Keystones — Bedrock
Five GCSE retrieval questions · 21 May 2025 · mathsvault.uk/keystones
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1. Number Adding whole numbers
Calculate: 21 + 13
Answer: 21 + 13 = 34 -
2. Algebra Substitution
If x = 5, find the value of 3x + 3
Answer: 18 -
3. Geometry Converting lengths
Convert 12cm to mm
Answer: 120mm -
4. Ratio Simplifying ratios
Simplify the ratio 21:6
Answer: 7:2 -
5. Statistics Mean
Find the mean of: 10, 18, 13, 13, 18
Answer: 14.4