Keystones — Bedrock
Five GCSE retrieval questions · 5 November 2015 · mathsvault.uk/keystones
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1. Number Adding whole numbers
Calculate: 24 + 27
Answer: 24 + 27 = 51 -
2. Algebra Substitution
If x = 10, find the value of 2x + 4
Answer: 24 -
3. Geometry Converting lengths
Convert 31cm to mm
Answer: 310mm -
4. Ratio Simplifying ratios
Simplify the ratio 15:30
Answer: 1:2 -
5. Statistics Mean
Find the mean of: 11, 2, 20, 15, 2
Answer: 10