8.4 Plus 99.9 Addition :

Number 1 Number 2 Answer
8.4 99.9 108.3

How to calculate 8.4 plus 99.9 ?

Let's break down the addition of 08.4 and 99.9 step by step:

   08.4      <-- Start with the rightmost column
+  99.9
---------

    Add the digits in the rightmost column:
        4 + 9 + 1 = 13
        Write down 3 in the rightmost column, carry over 1 to the next column.

   08.4
+  99.9
---------
     3


    Add the digits in the rightmost column:
        8 + 9 + 1 = 18
        Write down 8 in the rightmost column, carry over 1 to the next column.

   08.4
+  99.9
---------
     8.3


    Add the digits in the rightmost column:
        0 + 9 + 1 = 10
        Write down 0 in the rightmost column, carry over 1 to the next column.

   08.4
+  99.9
---------
     08.3

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

The final result is 108.3.
So, 08.4 + 99.9 = 108.3

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