Subtract the numbers: 493 - 424 + 539 - 391 + 945 = ? Calculate the numbers difference and learn how to do the subtraction, column subtracting method, from right to left

The operation to perform:
493 - 424 + 539 - 391 + 945

Add the positive numbers together.

The operation to perform:
493 + 539 + 945

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...


  493
  539
+  945

?

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

Add the digits in the ones column:

3 + 9 + 5 = 17

How did we add the digits? Explanation below.

Group the ones together in order to make tens:


3 + 9 + 5 =


3 + 9 + 5 =


(3 + 5) + 9 =


8 + 9 =


8 + 9 =


1 + 7 + 9 =


1 + 7 + 9 =


(1 + 9) + 7 =


10 + 7 =


17


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: 17.


7 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
  493
  539
+  945

    7

Add the digits in the tens column:

9 + 3 + 4 + 1 = 17

How did we add the digits? Explanation below.

Group the ones together in order to make tens:


9 + 3 + 4 + 1 =


9 + 3 + 4 + 1 =


(9 + 1) + 3 + 4 =


10 + 3 + 4 =


10 + 3 + 4 =


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.

  11
  493
  539
+  945

   77

Add the digits in the hundreds column:

4 + 5 + 9 + 1 = 19

How did we add the digits? Explanation below.

Group the ones together in order to make tens:


4 + 5 + 9 + 1 =


4 + 5 + 9 + 1 =


4 + 5 + 10 =


4 + 5 + 10 =


10 + (4 + 5) =


10 + 9 =


19



The sum is a two-digit number: 19.


9 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.

  11
  493
  539
+  945

 1977

Answer:
493 + 539 + 945 = 1,977

Add the negative numbers together.

The operation to perform:
- 424 - 391

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...


 424
+ 391

?

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

Add the digits in the ones column:

4 + 1 = 5

5 is the ones digit.
Write it down at the base of the ones column.


  
 424
+ 391

   5

Add the digits in the tens column:

2 + 9 = 11

How did we add the digits? Explanation below.

Group the ones together in order to make tens:


2 + 9 =


2 + 9 =


1 + 1 + 9 =


1 + 1 + 9 =


(1 + 9) + 1 =


10 + 1 =


11


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: 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.

 1
 424
+ 391

  15

Add the digits in the hundreds column:

4 + 3 + 1 = 8

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


 1
 424
+ 391

 815

Addition result:

424 + 391 = 815

Answer:
- 424 - 391 = - 815

The initial operation has become:

493 - 424 + 539 - 391 + 945 =


1,977 - 815

Now subtract the final numbers above:
1,977 - 815 = ?

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...


 1977
-  815

?

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

Subtract the digits in the ones column:

7 - 5 = 2.
2 is the ones digit.
Write it down at the base of the ones column.


 1977
-  815

    2

Subtract the digits in the tens column:

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


 1977
-  815

   62

Subtract the digits in the hundreds column:

9 - 8 = 1.
1 is the hundreds digit.
Write it down at the base of the hundreds column.


 1977
-  815

  162

Subtract the digits in the thousands column:

There is a single digit in this column: 1.
1 is the thousands digit.
Write it down at the base of the thousands column.


 1977
-  815

 1162

Final answer:
493 - 424 + 539 - 391 + 945 = 1,162

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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