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I know I line up the decimals when I add and subtract. Do I need to line the decimals up when I multiply and divide?

 

yes 

 

or 

 

no 

 Nov 19, 2020
 #1
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+1

no you don't need to. For the multiplication. if there is a decimal in the divisor, then you need to slide the decimal to the right until it is a integar. Same done with the dividend. if there is no decimal in the divisor, and there is a decimal in the dividend, then you need to bring the decimal straight up when you are dividing.

 Nov 19, 2020

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