Keystones — Bedrock
Five GCSE retrieval questions · 10 July 2012 · mathsvault.uk/keystones
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1. Number Adding whole numbers
Calculate: 30 + 39
Answer: 30 + 39 = 69 -
2. Algebra Substitution
If x = 9, find the value of 5x + 10
Answer: 55 -
3. Geometry Converting lengths
Convert 13m to cm
Answer: 1300cm -
4. Ratio Simplifying ratios
Simplify the ratio 15:20
Answer: 3:4 -
5. Statistics Mean
Find the mean of: 2, 1, 13, 2, 12
Answer: 6