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It is irrelevant if multiplying or dividing decimal numbers. For addition and subtraction it is not sufficient: you need to line up the decimal points as well as the digits according to their place values. If you intend to simply align the decimal points then you may as well not bother. This is to ensure that addition or subtraction is carried out for digits with the same place value.
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∙ 6y ago
Wiki User
∙ 11y agoSo your value isn't wrong
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Do you line up decimals when you multiply?
no
Do you have to line up the decimals when multiplying?
No, it is not necessary. But it does help to be tidy.
When do you line up the decimal?
you only line the decimals up when you are subtracting or adding not when you are multiplying im not sure about division...
What do you do when you add or subtract decimals?
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.
Why do you line up the decimals when adding decimals?
Because left of the decimal point goes times 10 for every position and right of the decimal point goes times -10 for every position.
Why is it important to line up the decimal point before or after adding a decimal?
That is because if you don't, you will get the wrong answer. It is ALWAYS important to LINE up the decimals.
Why is it important to line up the decimal?
It is important for you to line up the decimals vertically the way I did above so that you can keep track of the place-value position of the digits.
Why is it important to line up the decimal points when you add decimals?
The importance of lining up the decimals is so you can just add from bottom to top it makes things a lot easier.
Why is it important to line up decimals while adding?
Because you could mess up and add the wrong numbers together.
How do you add decimals step by step?
line up the decimals together
Do you line up decimals when you multiply?
no
How line up multiply 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.
When multiplying decimals do you line them up?
Yes you do that is very important when doing a decimal problem.* * * * *It is important for other basic binary operations but NOTmultiplication.
What is the rule for add decimals?
Just make sure you line up the decimals
Do you line decimals up when subtracting?
Yes!
Do you line up decimals in subtraction?
Yes. Line up them up when you're adding, too.
Show an example of adding decimals?
39.63 +42.35 ------------ 81.98 Just line up the decimals and then add.
