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:
- 523 + 4,230 - 749 + 2,128 + 646 + 666

Add the positive numbers together.

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

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...


 4230
 2128
  646
+  666

?

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

Add the digits in the ones column:

0 + 8 + 6 + 6 = 20

How did we add the digits? Explanation below.

Group the ones together in order to make tens:


0 + 8 + 6 + 6 =


8 + 6 + 6 =


8 + 4 + 2 + 6 =


8 + 4 + 2 + 6 =


(8 + 2) + (4 + 6) =


10 + 10 =


20


Change the order in which the numbers are added, the sum stays the same.
Break some number(s) into component parts, the sum stays the same.


The sum is a two-digit number: 20.


0 is the ones digit.
Write it down at the base of 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
 4230
 2128
  646
+  666

    0

Add the digits in the tens column:

3 + 2 + 4 + 6 + 2 = 17

How did we add the digits? Explanation below.

Group the ones together in order to make tens:


3 + 2 + 4 + 6 + 2 =


3 + 2 + 4 + 6 + 2 =


3 + 2 + 10 + 2 =


3 + 2 + 10 + 2 =


10 + (3 + 2 + 2) =


10 + 7 =


17



The sum is a two-digit number: 17.


7 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.

  12
 4230
 2128
  646
+  666

   70

Add the digits in the hundreds column:

2 + 1 + 6 + 6 + 1 = 16

How did we add the digits? Explanation below.

Group the ones together in order to make tens:


2 + 1 + 6 + 6 + 1 =


2 + 1 + 6 + 6 + 1 =


(2 + 1 + 6 + 1) + 6 =


10 + 6 =


16



The sum is a two-digit number: 16.


6 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.

 112
 4230
 2128
  646
+  666

  670

Add the digits in the thousands column:

4 + 2 + 1 = 7

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


 112
 4230
 2128
  646
+  666

 7670

Answer:
4,230 + 2,128 + 646 + 666 = 7,670

Add the negative numbers together.

The operation to perform:
- 523 - 749

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...


  523
+  749

?

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

Add the digits in the ones column:

3 + 9 = 12

How did we add the digits? Explanation below.

Group the ones together in order to make tens:


3 + 9 =


3 + 9 =


1 + 2 + 9 =


1 + 2 + 9 =


(1 + 9) + 2 =


10 + 2 =


12


Change the order in which the numbers are added, the sum stays the same.
Break some number(s) into component parts, the sum stays the same.


The sum is a two-digit number: 12.


2 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.

   1
  523
+  749

    2

Add the digits in the tens column:

2 + 4 + 1 = 7

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


  1
  523
+  749

   72

Add the digits in the hundreds column:

5 + 7 = 12

How did we add the digits? Explanation below.

Group the ones together in order to make tens:


5 + 7 =


5 + 7 =


3 + 2 + 7 =


3 + 2 + 7 =


(3 + 7) + 2 =


10 + 2 =


12



The sum is a two-digit number: 12.


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


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

  1
  523
+  749

 1272

Addition result:

523 + 749 = 1,272

Answer:
- 523 - 749 = - 1,272

The initial operation has become:

- 523 + 4,230 - 749 + 2,128 + 646 + 666 =


7,670 - 1,272

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

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...


 7670
- 1272

?

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

Subtract the digits in the ones column:

0 - 2 = ?

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: 7 - 1 = 6.
Cross out the top digit you've borrowed 1 from: 7.
Write the answer above that digit: 6.


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


   610
 7670
- 1272

     

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


   610
 7670
- 1272

    8

Subtract the digits in the tens column:

7 6 - 7 = ?

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

Subtract 1 from the top digit in the column of the hundreds: 6 - 1 = 5.
Cross out the top digit you've borrowed 1 from: 6.
Write the answer above that digit: 5.


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


  51610
 7670
- 1272

    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.


  51610
 7670
- 1272

   98

Subtract the digits in the hundreds column:

6 5 - 2 = 3.
3 is the hundreds digit.
Write it down at the base of the hundreds column.


  51610
 7670
- 1272

  398

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.


  51610
 7670
- 1272

 6398

Final answer:
- 523 + 4,230 - 749 + 2,128 + 646 + 666 = 6,398

How to subtract the numbers:
531 + 4,238 + 756 - 2,138 + 649 - 675 = ?


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.

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