Subtract Numbers: 646 + 924 - 355 + 2,138 - 255. Calculate the Difference and Learn How To Do the Subtraction, Column Method. Online Calculator
The numbers subtraction to perform:
646 + 924 - 355 + 2,138 - 255 = ?
Add the positive numbers together.
The operation to perform:
646 + 924 + 2,138
Method used below: column adding, 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.
And so on...
Add column by column; start with the column on the right.
Add the digits in the ones column:
6 + 4 + 8 = 18
How did we add the digits? Explanation below.
Group the ones together in order to make tens:
6 + 4 + 8 =
6 + 4 + 8 =
10 + 8 =
18
Change the order in which the numbers are added, the sum stays the same.
The sum is a two-digit number: 18.
8 is the ones digit.
Write it down at the base of 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.
Add the digits in the tens column:
4 + 2 + 3 + 1 = 10
The sum is a two-digit number: 10.
0 is the tens digit.
Write it down at the base of 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.
Add the digits in the hundreds column:
6 + 9 + 1 + 1 = 17
How did we add the digits? Explanation below.
Group the ones together in order to make tens:
6 + 9 + 1 + 1 =
6 + 9 + 1 + 1 =
6 + 10 + 1 =
6 + 10 + 1 =
10 + (6 + 1) =
10 + 7 =
17
The sum is a two-digit number: 17.
7 is the hundreds digit.
Write it down at the base of 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.
Add the digits in the thousands column:
2 + 1 = 3
3 is the thousands digit.
Write it down at the base of the thousands column.
Final answer:
646 + 924 + 2,138 = 3,708
Add the negative numbers together.
The operation to perform:
- 355 - 255
Add the numbers as if they were positive.
But at the end attach a minus sign in front of the result.
Method used below: column adding, 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.
And so on...
Add column by column; start with the column on the right.
Add the digits in the ones column:
5 + 5 = 10
The sum is a two-digit number: 10.
0 is the ones digit.
Write it down at the base of 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.
Add the digits in the tens column:
5 + 5 + 1 = 11
How did we add the digits? Explanation below.
Group the ones together in order to make tens:
5 + 5 + 1 =
5 + 5 + 1 =
10 + 1 =
11
Change the order in which the numbers are added, the sum stays the same.
The sum is a two-digit number: 11.
1 is the tens digit.
Write it down at the base of 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.
Add the digits in the hundreds column:
3 + 2 + 1 = 6
6 is the hundreds digit.
Write it down at the base of the hundreds column.
Addition result:
355 + 255 = 610
Final answer:
- 355 - 255 = - 610
The initial operation has become:
646 + 924 - 355 + 2,138 - 255 =
3,708 - 610
Now subtract the final numbers above:
3,708 - 610 = ?
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.
And so on...
Subtract column by column; start with the column on the right
Subtract the digits in the ones column:
8 - 0 = 8.
8 is the ones digit.
Write it down at the base of the ones column.
Subtract the digits in the tens column:
0 - 1 = ?
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 hundreds: 7 - 1 = 6.
Cross out the top digit you've borrowed 1 from: 7.
Write the answer above that digit: 6.
When borrowing, 1 hundred = 10 tens.
Add 10 to the top digit in the column of the tens: 10 + 0 = 10.
After borrowing, the subtraction has become:
10 - 1 = 9.
9 is the tens digit.
Write it down at the base of the tens column.
Subtract the digits in the hundreds column:
7 6 - 6 = 0.
0 is the hundreds digit.
Write it down at the base of the hundreds column.
Subtract the digits in the thousands column:
There is a single digit in this column: 3.
3 is the thousands digit.
Write it down at the base of the thousands column.
Final answer:
646 + 924 - 355 + 2,138 - 255 = 3,098
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.