Keystones — Bedrock
Five GCSE retrieval questions · 10 March 2011 · mathsvault.uk/keystones
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1. Number Adding whole numbers
Calculate: 67 + 33
Answer: 67 + 33 = 100 -
2. Algebra Substitution
If x = 9, find the value of 2x + 5
Answer: 23 -
3. Geometry Converting lengths
Convert 13m to cm
Answer: 1300cm -
4. Ratio Simplifying ratios
Simplify the ratio 6:12
Answer: 1:2 -
5. Statistics Mean
Find the mean of: 9, 15, 17, 7
Answer: 12