Subtract the numbers: 68 - 90 = ? Calculate the numbers difference and learn how to do the subtraction, column subtracting method, from right to left

Method used below: column subtracting, from right to left (traditional)

The second number is larger than the first.

The answer will be negative (less than zero).


To subtract the numbers just reverse them:

90 - 68 = ?


But at the end attach a minus sign in front of the result.


Stack the numbers on top of each other.

The ones digits line up in the first column from the right.

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


 90
- 68

?

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

Subtract the digits in the ones column:

0 - 8 = ?

The second digit is larger than the first.
Borrow from the next column to the left.

The borrowing is a two step process:


Subtract 1 from the top digit in the column of the tens: 9 - 1 = 8.
Cross out the top digit you've borrowed 1 from: 9.
Write the answer above that digit: 8.


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


 810
 90
- 68

   

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


 810
 90
- 68

  2

Subtract the digits in the tens column:

9 8 - 6 = 2.
2 is the tens digit.
Write it down at the base of the tens column.


 810
 90
- 68

 22

The answer will be negative (less than zero):

68 - 90 = - 22

Final answer:
68 - 90 = - 22

Subtraction Calculator: Subtract Numbers & Learn to Calculate the Difference

1. Stack the numbers on top of each other. 2. Subtract column by column starting from the column on the right.

The latest 13 operations with subtracted numbers:

68 - 90 = ? May 30 22:39 UTC (GMT)
- 3,293 + 1,342 = ? May 30 22:39 UTC (GMT)
- 943 - 1,927 - 508 - 294 = ? May 30 22:39 UTC (GMT)
- 3,946 + 9,463 + 10,081 = ? May 30 22:39 UTC (GMT)
154 + 86 - 89 - 154 + 55 + 92 + 123 + 69 = ? May 30 22:39 UTC (GMT)
- 52 + 106 + 50 + 50 - 116 - 61 - 66 - 50 = ? May 30 22:39 UTC (GMT)
943 + 1,922 + 489 - 292 = ? May 30 22:39 UTC (GMT)
- 2,403 + 2,431 = ? May 30 22:39 UTC (GMT)
- 421 - 2,997 - 18,371 - 256 + 61 = ? May 30 22:39 UTC (GMT)
- 591 + 466 - 594 + 470 - 1,007 = ? May 30 22:39 UTC (GMT)
1,007 + 1,073 - 968 + 743 + 383 - 572 = ? May 30 22:39 UTC (GMT)
7,193 - 5,690 = ? May 30 22:39 UTC (GMT)
- 424 + 339 + 441 - 334 - 878 = ? May 30 22:39 UTC (GMT)
All the operations with the numbers subtracted by users...

How to subtract numbers? Let's learn with an example

The operation to perform:
52 - 37

Method used below: column subtracting, from right to left (traditional)


Stack the numbers on top of each other.

The ones digits line up in the first column from the right.

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


 52
- 37

?

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

Subtract the digits in the ones column:

2 - 7 = ?

The second digit is larger than the first.
Borrow from the next column to the left.

The borrowing is a two step process:


Subtract 1 from the top digit in the column of the tens: 5 - 1 = 4.
Cross out the top digit you've borrowed 1 from: 5.
Write the answer above that digit: 4.


When borrowing, 1 ten = 10 ones.
Add 10 to the top digit in the column of the ones: 10 + 2 = 12.


 4 
 512
- 37

   

After borrowing the subtraction has become:
it2brw: 12 - 7 = 5.
5 is the ones digit.
Write it down at the base of the ones column.


 4 
 512
- 37

  5

Subtract the digits in the tens column:

it1go: 5 4 - 3 = 1.
1 is the tens digit.
Write it down at the base of the tens column.


 4 
 512
- 37

 15

Final answer: 52 - 37 = 15



>> How to subtract numbers: calculate the difference and learn to subtract multiple digits numbers by using the column subtracting method