Add the numbers: 120 + 145 + 125 = ? Calculate the natural numbers sum and learn how to do the addition, column adding method, from right to left

The numbers addition to perform:
120 + 145 + 125

Method used below: column adding, from right to left (traditional).


Stack the numbers on top of each other.

The ones digits line up in the first column from the right.

The tens digits line up in the next column to the left.

And so on...


 120
 145
+ 125

?

Add column by column; start from the column on the right.

Add the digits in the ones column:

0 + 5 + 5 = 10


The sum is a two-digit number: 10.


0 is the ones digit.
Write it down at the base of the ones column.


1 is the tens digit.
Carry it over to the tens column.
Write the digit above that column.
Add it with the rest of the digits in that column.

  1
 120
 145
+ 125

   0

Add the digits in the tens column:

2 + 4 + 2 + 1 = 9

9 is the tens digit.
Write it down at the base of the tens column.


 1
 120
 145
+ 125

  90

Add the digits in the hundreds column:

1 + 1 + 1 = 3

3 is the hundreds digit.
Write it down at the base of the hundreds column.


 1
 120
 145
+ 125

 390

Answer:

120 + 145 + 125 = 390

Addition Calculator: Add Numbers & Learn to Calculate the Sum

1. Stack the numbers on top of each other. 2. Add column by column starting from the column on the right.

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