Keystones — Bedrock
Five GCSE retrieval questions · 20 March 2025 · mathsvault.uk/keystones
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1. Number Adding whole numbers
Calculate: 41 + 43
Answer: 41 + 43 = 84 -
2. Algebra Substitution
If x = 2, find the value of 8x + 12
Answer: 28 -
3. Geometry Converting lengths
Convert 45cm to mm
Answer: 450mm -
4. Ratio Simplifying ratios
Simplify the ratio 8:16
Answer: 1:2 -
5. Statistics Mean
Find the mean of: 14, 19, 2, 20, 2
Answer: 11.4