Keystones — Bedrock
Five GCSE retrieval questions · 8 August 2025 · mathsvault.uk/keystones
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1. Number Adding whole numbers
Calculate: 82 + 60
Answer: 82 + 60 = 142 -
2. Algebra Substitution
If x = 2, find the value of 8x + 10
Answer: 26 -
3. Geometry Converting lengths
Convert 48cm to mm
Answer: 480mm -
4. Ratio Simplifying ratios
Simplify the ratio 9:18
Answer: 1:2 -
5. Statistics Mean
Find the mean of: 13, 19, 20
Answer: 17.333333333333