# Subtract the numbers: 91 - 77 = ? Calculate the numbers difference and learn how to do the subtraction, column subtracting method, from right to left

## The operation to perform: 91 - 77

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

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

 9 1 - 7 7 ?

## 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 + 1 = 11.

 8 9 11 - 7 7

#### After borrowing, the subtraction has become: 11 - 7 = 10 + 1 - 7 = 10 + 1 - 7 = 1 + (10 - 7) = 1 + 3 = 4. 4 is the ones digit. Write it down at the base of the ones column.

 8 9 11 - 7 7 4

### Subtract the digits in the tens column:

#### 98 - 7 = 1. 1 is the tens digit. Write it down at the base of the tens column.

 8 9 11 - 7 7 1 4

## The latest numbers that were subtracted

 91 - 77 = ? May 17 07:04 UTC (GMT) 893 - 1,889 - 450 - 248 = ? May 17 07:04 UTC (GMT) 3,971 - 9,476 - 10,101 = ? May 17 07:03 UTC (GMT) - 4,098 - 9,618 = ? May 17 07:03 UTC (GMT) 918 - 1,907 + 460 - 279 = ? May 17 07:03 UTC (GMT) 394 - 422 - 321 + 588 + 448 = ? May 17 07:03 UTC (GMT) 945 + 1,953 - 498 - 287 = ? May 17 07:02 UTC (GMT) - 402 - 315 - 461 - 289 - 879 = ? May 17 07:02 UTC (GMT) - 120 + 112 = ? May 17 07:02 UTC (GMT) 47,432 - 9,453 = ? May 17 07:02 UTC (GMT) - 986 + 1,981 + 535 + 326 = ? May 17 07:02 UTC (GMT) 3,977 - 9,511 + 10,118 = ? May 17 07:02 UTC (GMT) - 139 - 115 + 139 + 261 = ? May 17 07:01 UTC (GMT) All the numbers that were subtracted by users