Keystones — Bedrock
Five GCSE retrieval questions · 2 November 2010 · mathsvault.uk/keystones
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1. Number Adding whole numbers
Calculate: 39 + 17
Answer: 39 + 17 = 56 -
2. Algebra Substitution
If x = 5, find the value of 5x + 9
Answer: 34 -
3. Geometry Converting lengths
Convert 13m to cm
Answer: 1300cm -
4. Ratio Simplifying ratios
Simplify the ratio 4:8
Answer: 1:2 -
5. Statistics Mean
Find the mean of: 5, 17, 20
Answer: 14