# Add the numbers: 7,393 + 3,216 + 391 = ? Calculate the natural numbers sum and learn how to do the addition, column adding method, from right to left

## The numbers addition to perform: 7,393 + 3,216 + 391

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

#### And so on...

 7 3 9 3 3 2 1 6 + 3 9 1 ?

## 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 3 9 3 3 2 1 6 + 3 9 1 0

### Add the digits in the tens column:

#### 2 is the hundreds digit. Carry it over to the hundreds column. Write the digit above that column. Add it with the rest of the digits in that column.

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

### Add the digits in the hundreds column:

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

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

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