karlajimez karlajimez

12-10-2016
Mathematics

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explain how knowing 50×4 helps you find 500×400

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LearninAngel13 LearninAngel13

12-10-2016

5x4= 20
50x40=200
500x400=200000
Do you see the pattern? 5x4=20, which means that all you need to do is add the zeros. 50x40 has two zeros, which means it should equal 200.

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