12.4 Plus 678 Addition :

Number 1 Number 2 Answer
12.4 678 690.4

How to calculate 12.4 plus 678 ?

Let's break down the addition of 012.4 and 67800 step by step:

   012.4      <-- Start with the rightmost column
+  67800
---------

    Add the digits in the rightmost column:
        4 + 0 + 0 = 4
        Write down 4 in the rightmost column, carry over 0 to the next column.

   012.4
+  67800
---------
     4


    Add the digits in the rightmost column:
        2 + 8 + 1 = 10
        Write down 0 in the rightmost column, carry over 1 to the next column.

   012.4
+  67800
---------
     0.4


    Add the digits in the rightmost column:
        1 + 7 + 0 = 9
        Write down 9 in the rightmost column, carry over 0 to the next column.

   012.4
+  67800
---------
     90.4


    Add the digits in the rightmost column:
        0 + 6 + 0 = 6
        Write down 6 in the rightmost column, carry over 0 to the next column.

   012.4
+  67800
---------
     690.4

    Continue to the left:
        There are no more columns to the left.

The final result is 690.4.
So, 012.4 + 67800 = 690.4

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