Keystones — Bedrock
Five GCSE retrieval questions · 1 August 2025 · mathsvault.uk/keystones
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1. Number Adding whole numbers
Calculate: 11 + 10
Answer: 11 + 10 = 21 -
2. Algebra Substitution
If x = 3, find the value of 6x + 10
Answer: 28 -
3. Geometry Converting lengths
Convert 50cm to mm
Answer: 500mm -
4. Ratio Simplifying ratios
Simplify the ratio 9:18
Answer: 1:2 -
5. Statistics Mean
Find the mean of: 6, 6, 17, 8, 19
Answer: 11.2