12.4 Plus 408.2 Addition :

Number 1 Number 2 Answer
12.4 408.2 420.6

How to calculate 12.4 plus 408.2 ?

Let's break down the addition of 012.4 and 408.2 step by step:

   012.4      <-- Start with the rightmost column
+  408.2
---------

    Add the digits in the rightmost column:
        4 + 2 + 0 = 6
        Write down 6 in the rightmost column, carry over 0 to the next column.

   012.4
+  408.2
---------
     6


    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
+  408.2
---------
     0.6


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

   012.4
+  408.2
---------
     20.6


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

   012.4
+  408.2
---------
     420.6

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

The final result is 420.6.
So, 012.4 + 408.2 = 420.6

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