Keystones — Bedrock
Five GCSE retrieval questions · 2 March 2012 · mathsvault.uk/keystones
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1. Number Adding whole numbers
Calculate: 45 + 82
Answer: 45 + 82 = 127 -
2. Algebra Substitution
If x = 3, find the value of 3x + 8
Answer: 17 -
3. Geometry Converting lengths
Convert 41cm to mm
Answer: 410mm -
4. Ratio Simplifying ratios
Simplify the ratio 10:6
Answer: 5:3 -
5. Statistics Mean
Find the mean of: 4, 20, 12, 20, 19
Answer: 15