Keystones — Bedrock
Five GCSE retrieval questions · 17 July 2011 · mathsvault.uk/keystones
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1. Number Adding whole numbers
Calculate: 31 + 37
Answer: 31 + 37 = 68 -
2. Algebra Substitution
If x = 3, find the value of 7x + 12
Answer: 33 -
3. Geometry Converting lengths
Convert 41cm to mm
Answer: 410mm -
4. Ratio Simplifying ratios
Simplify the ratio 20:30
Answer: 2:3 -
5. Statistics Mean
Find the mean of: 7, 20, 2, 15
Answer: 11