Keystones — Bedrock
Five GCSE retrieval questions · 20 November 2013 · mathsvault.uk/keystones
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1. Number Adding whole numbers
Calculate: 20 + 39
Answer: 20 + 39 = 59 -
2. Algebra Substitution
If x = 6, find the value of 6x + 9
Answer: 45 -
3. Geometry Converting lengths
Convert 35cm to mm
Answer: 350mm -
4. Ratio Simplifying ratios
Simplify the ratio 16:14
Answer: 8:7 -
5. Statistics Mean
Find the mean of: 18, 11, 17, 6
Answer: 13