Keystones — Bedrock
Five GCSE retrieval questions · 6 July 2011 · mathsvault.uk/keystones
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1. Number Adding whole numbers
Calculate: 43 + 23
Answer: 43 + 23 = 66 -
2. Algebra Substitution
If x = 9, find the value of 5x + 4
Answer: 49 -
3. Geometry Converting lengths
Convert 7m to cm
Answer: 700cm -
4. Ratio Simplifying ratios
Simplify the ratio 10:35
Answer: 2:7 -
5. Statistics Mean
Find the mean of: 15, 25, 10, 19, 6
Answer: 15