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Q: Do you have to line up the decimals when multiplying?

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you only line the decimals up when you are subtracting or adding not when you are multiplying im not sure about division...

No, it is not true.

Yes you do that is very important when doing a decimal problem.* * * * *It is important for other basic binary operations but NOTmultiplication.

1. When adding, the decimals MUST line up: 012.3 +32.1 2. When multiplying, you dont have to put the decimals side by side: 12.3 x323.55 Then you count how many numbers are after the decimals, which, in this case, is three. Hope it helped!

why do they move the decimals when multiplying

no.

Yes.

no

Fractions and decimals are usually rational numbers. Besides, multiplying rational and irrational numbers is also similar.

line up the decimals together

Just make sure you line up the decimals

You need to line up decimals for additional and subtraction. For multiplication, you don't need to line them up - in fact, it would serve no useful purpose.

Yes!

Hey awesome Question. The answer is no you do not have to line up the decimals when multyping only when adding and subtracting. The main thing is when you multiply make sure you put the decimal in the right place in your answer. YOu count how may places their are behind the decimals in BOTH numbers then you make sure their are that many places behind the decimal in you answer. :)

Yes. Line up them up when you're adding, too.

Very.

0.0232

There is no difference in the procedure.

line up the demials

39.63 +42.35 ------------ 81.98 Just line up the decimals and then add.

adding subtracting multiplying and dividing

So your value isn't wrong

Adding and subtracting decimals is easy. When you put the numbers one above the other, line up the decimals vertically and treat as you would any whole number just keep the decimals in line and bring it straight down to your answer.

You line up the decimals and simply subtract. Below is an example. 2.989-1.989= 2.989 1.989 --------- 1.000

You have to line up the decimal when adding but not when multiplying. Example: This one is adding 23.56+89.45 23.56 89.45 This one is multiplying 23.54*4.506 23.54 4.506