# Add the numbers: 7,827 + 3,109 = ? Calculate the natural numbers sum and learn how to do the addition, column adding method, from right to left

## The numbers addition to perform: 7,827 + 3,109

### Stack the numbers on top of each other.

#### And so on...

 7 8 2 7 + 3 1 0 9 ?

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

### Add the digits in 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 7 8 2 7 + 3 1 0 9 6

### Add the digits in the tens column:

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

 1 7 8 2 7 + 3 1 0 9 3 6

### Add the digits in the hundreds column:

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

 1 7 8 2 7 + 3 1 0 9 9 3 6

### Add the digits in the thousands column:

#### 1 is the ten thousands digit. Write it down at the base, next to the thousands digit.

 1 7 8 2 7 + 3 1 0 9 1 0 9 3 6