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# How do you know where the decimal point is located in the answer to a multiplication problem with decimals?

Updated: 12/23/2022

Wiki User

11y ago

Okay so here is an example:

0.25 x 0.30

You move the decimal out from 0.25 towards to the right and you count how many spaces you have to move it. In this case, it's twice. The same goes for 0.30. You count how many times it moves to the right and then you just do 25 x 30 because you've gotten rid of the decimal. Now the answer to 25 x 30 is 750. You then move the decimals back in after you've found the answer. Since you had to move the decimal to two places to te right both times, you add that together to get four so you move the decimal back in, but move it four spaces to the left. Now the answer is 0.0750.

Do you get it or is my explainaton a bit confusing? Sorry if it is, I'm not very good at explaining things

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Multiply the numbers as if there were no decimals;

then count the decimal places from the right in

each number, adding them to the answer.

Ex: 4.01 x 2.02 = 8.1002

Wiki User

11y ago