Keystones — Bedrock
Five GCSE retrieval questions · 13 October 2010 · mathsvault.uk/keystones
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1. Number Adding whole numbers
Calculate: 47 + 40
Answer: 47 + 40 = 87 -
2. Algebra Substitution
If x = 4, find the value of 3x + 3
Answer: 15 -
3. Geometry Converting lengths
Convert 20m to cm
Answer: 2000cm -
4. Ratio Simplifying ratios
Simplify the ratio 6:21
Answer: 2:7 -
5. Statistics Mean
Find the mean of: 7, 5, 6
Answer: 6