# Add the numbers: 890 + 1,170 + 155 = ? Calculate the natural numbers sum and learn how to do the addition, column adding method, from right to left

## The numbers addition to perform: 890 + 1,170 + 155

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

#### And so on...

 8 9 0 1 1 7 0 + 1 5 5 ?

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

### Add the digits in the ones column:

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

 8 9 0 1 1 7 0 + 1 5 5 5

### 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 8 9 0 1 1 7 0 + 1 5 5 1 5

### 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 8 9 0 1 1 7 0 + 1 5 5 2 1 5

### Add the digits in the thousands column:

#### 2 is the thousands digit. Write it down at the base of the thousands column.

 1 2 8 9 0 1 1 7 0 + 1 5 5 2 2 1 5