Keystones — Bedrock
Five GCSE retrieval questions · 23 November 2010 · mathsvault.uk/keystones
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1. Number Adding whole numbers
Calculate: 38 + 41
Answer: 38 + 41 = 79 -
2. Algebra Substitution
If x = 3, find the value of 3x + 10
Answer: 19 -
3. Geometry Converting lengths
Convert 20m to cm
Answer: 2000cm -
4. Ratio Simplifying ratios
Simplify the ratio 24:32
Answer: 3:4 -
5. Statistics Mean
Find the mean of: 17, 5, 18, 12
Answer: 13