Keystones — Bedrock
Five GCSE retrieval questions · 29 November 2010 · mathsvault.uk/keystones
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1. Number Adding whole numbers
Calculate: 18 + 41
Answer: 18 + 41 = 59 -
2. Algebra Substitution
If x = 9, find the value of 5x + 3
Answer: 48 -
3. Geometry Converting lengths
Convert 19cm to mm
Answer: 190mm -
4. Ratio Simplifying ratios
Simplify the ratio 14:6
Answer: 7:3 -
5. Statistics Mean
Find the mean of: 17, 12, 9, 6, 16
Answer: 12