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usually the largest on the top row of the sum, then the middle, then the smallest, makes a tidier arrangement

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Q: How do you line up decimals when adding 3 numbers?
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Related questions

Why is it important to line up decimals while adding?

Because you could mess up and add the wrong numbers together.

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.

Do you line up decimals in subtraction?

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

What is the first step when adding decimals?

line up the demials

When multiplying decimals with whole numbers do you line up the whole numbers?

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. :)

Show an example of adding decimals?

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

How can decimals be added together?

When adding numbers with decimals always make sure the decimal points are lined up. That is the only way to be sure that the person will be adding them up right.

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 are some of the rules to follow with decimals?

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 you line up the decimal when adding or subtracting decimal numbers?

Yes, When Adding and Subtracting decimals you should line up the decimals. You need to keep each place value in the same column, the same as when you add whole numbers you keep the ones column lined up, same for the tens, etc. Lining up the decimal points makes sure that the tenths column is kept together, same for the hundredths, and so on.

How can you add decimals without a place-value chart to make sure you adding the same place value?

you can line up the decimals

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.