Keystones — Bedrock
Five GCSE retrieval questions · 23 October 2025 · mathsvault.uk/keystones
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1. Number Adding whole numbers
Calculate: 19 + 29
Answer: 19 + 29 = 48 -
2. Algebra Substitution
If x = 5, find the value of 5x + 5
Answer: 30 -
3. Geometry Converting lengths
Convert 42cm to mm
Answer: 420mm -
4. Ratio Simplifying ratios
Simplify the ratio 9:18
Answer: 1:2 -
5. Statistics Mean
Find the mean of: 13, 19, 10, 2
Answer: 11