Explain how you know that the sum of 12.6,3.1, and 5.4 is greater than 20

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asked Feb 28, 2017 21.1k views

1 Answer

Valor · Answer 1 · 2017-03-04T12:37:14+0000

by just looking at ur whole numbers...12 + 3 + 5 = 20...and thats not even counting ur decimals..so by adding ur decimals, u know that it will be over 20.

Explain how you know that the sum of 12.6,3.1, and 5.4 is greater than 20

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