Keystones — Bedrock
Five GCSE retrieval questions · 25 April 2012 · mathsvault.uk/keystones
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1. Number Adding whole numbers
Calculate: 45 + 57
Answer: 45 + 57 = 102 -
2. Algebra Substitution
If x = 5, find the value of 7x + 10
Answer: 45 -
3. Geometry Converting lengths
Convert 3m to cm
Answer: 300cm -
4. Ratio Simplifying ratios
Simplify the ratio 40:25
Answer: 8:5 -
5. Statistics Mean
Find the mean of: 11, 13, 12, 5, 9
Answer: 10