10.9 Plus 128.4 Addition :

Number 1 Number 2 Answer
10.9 128.4 139.3

How to calculate 10.9 plus 128.4 ?

Let's break down the addition of 010.9 and 128.4 step by step:

   010.9      <-- Start with the rightmost column
+  128.4
---------

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

   010.9
+  128.4
---------
     3


    Add the digits in the rightmost column:
        0 + 8 + 0 = 9
        Write down 9 in the rightmost column, carry over 0 to the next column.

   010.9
+  128.4
---------
     9.3


    Add the digits in the rightmost column:
        1 + 2 + 0 = 3
        Write down 3 in the rightmost column, carry over 0 to the next column.

   010.9
+  128.4
---------
     39.3


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

   010.9
+  128.4
---------
     139.3

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

The final result is 139.3.
So, 010.9 + 128.4 = 139.3

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