Keystones — Bedrock
Five GCSE retrieval questions · 3 November 2014 · mathsvault.uk/keystones
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1. Number Adding whole numbers
Calculate: 27 + 25
Answer: 27 + 25 = 52 -
2. Algebra Substitution
If x = 4, find the value of 5x + 12
Answer: 32 -
3. Geometry Converting lengths
Convert 13cm to mm
Answer: 130mm -
4. Ratio Simplifying ratios
Simplify the ratio 10:35
Answer: 2:7 -
5. Statistics Mean
Find the mean of: 23, 19, 17, 13, 3
Answer: 15