# Subtract the numbers: - 523 + 4,230 - 749 + 2,128 + 646 + 666 = ? Calculate the numbers difference and learn how to do the subtraction, column subtracting method, from right to left

## The operation to perform: 4,230 + 2,128 + 646 + 666

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

#### And so on...

 4 2 3 0 2 1 2 8 6 4 6 + 6 6 6 ?

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

### Add the digits in the ones column:

#### 2 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.

 2 4 2 3 0 2 1 2 8 6 4 6 + 6 6 6 0

### Add the digits in the tens column:

#### 1 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.

 1 2 4 2 3 0 2 1 2 8 6 4 6 + 6 6 6 7 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 1 2 4 2 3 0 2 1 2 8 6 4 6 + 6 6 6 6 7 0

### Add the digits in the thousands column:

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

 1 1 2 4 2 3 0 2 1 2 8 6 4 6 + 6 6 6 7 6 7 0

## The operation to perform: - 523 - 749

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

#### And so on...

 5 2 3 + 7 4 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 5 2 3 + 7 4 9 2

### Add the digits in the tens column:

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

 1 5 2 3 + 7 4 9 7 2

### Add the digits in the hundreds column:

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

 1 5 2 3 + 7 4 9 1 2 7 2

## Now subtract the final numbers above: 7,670 - 1,272 = ?

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

#### And so on...

 7 6 7 0 - 1 2 7 2 ?

## Subtract column by column; start from the column on the right

### Subtract the digits in the ones column:

#### When borrowing, 1 ten = 10 ones. Add 10 to the top digit in the column of the ones: 10 + 0 = 10.

 6 10 7 6 7 0 - 1 2 7 2

#### After borrowing, the subtraction has become: 10 - 2 = 8. 8 is the ones digit. Write it down at the base of the ones column.

 6 10 7 6 7 0 - 1 2 7 2 8

### Subtract the digits in the tens column:

#### When borrowing, 1 hundred = 10 tens. Add 10 to the top digit in the column of the tens: 10 + 6 = 16.

 5 16 10 7 6 7 0 - 1 2 7 2 8

#### After borrowing, the subtraction has become: 16 - 7 = 10 + 6 - 7 = 10 + 6 - 7 = 6 + (10 - 7) = 6 + 3 = 9. 9 is the tens digit. Write it down at the base of the tens column.

 5 16 10 7 6 7 0 - 1 2 7 2 9 8

### Subtract the digits in the hundreds column:

#### 65 - 2 = 3. 3 is the hundreds digit. Write it down at the base of the hundreds column.

 5 16 10 7 6 7 0 - 1 2 7 2 3 9 8

### Subtract the digits in the thousands column:

#### 7 - 1 = 6. 6 is the thousands digit. Write it down at the base of the thousands column.

 5 16 10 7 6 7 0 - 1 2 7 2 6 3 9 8

## The latest numbers that were subtracted

 - 523 + 4,230 - 749 + 2,128 + 646 + 666 = ? Apr 13 22:14 UTC (GMT) - 7,221 + 5,694 = ? Apr 13 22:14 UTC (GMT) 442 + 328 + 477 + 319 - 886 = ? Apr 13 22:14 UTC (GMT) - 533 - 492 - 615 + 452 + 1,047 = ? Apr 13 22:14 UTC (GMT) - 303 + 233 - 368 - 226 + 780 = ? Apr 13 22:14 UTC (GMT) - 469 + 540 + 433 + 720 - 550 = ? Apr 13 22:14 UTC (GMT) - 4,121 - 9,650 = ? Apr 13 22:14 UTC (GMT) - 927 - 376 = ? Apr 13 22:14 UTC (GMT) - 211 + 106 + 126 - 178 + 93 - 109 + 151 - 115 = ? Apr 13 22:14 UTC (GMT) - 3,986 + 9,520 = ? Apr 13 22:14 UTC (GMT) - 4,025 - 9,540 = ? Apr 13 22:13 UTC (GMT) - 934 - 1,932 - 502 + 264 = ? Apr 13 22:13 UTC (GMT) - 3,249 + 1,263 = ? Apr 13 22:13 UTC (GMT) All the numbers that were subtracted by users