Keystones — Bedrock
Five GCSE retrieval questions · 12 October 2013 · mathsvault.uk/keystones
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1. Number Adding whole numbers
Calculate: 31 + 28
Answer: 31 + 28 = 59 -
2. Algebra Substitution
If x = 9, find the value of 2x + 12
Answer: 30 -
3. Geometry Converting lengths
Convert 35cm to mm
Answer: 350mm -
4. Ratio Simplifying ratios
Simplify the ratio 40:30
Answer: 4:3 -
5. Statistics Mean
Find the mean of: 19, 4, 19
Answer: 14