10.9 Plus 80 Addition :

Number 1 Number 2 Answer
10.9 80 90.9

How to calculate 10.9 plus 80 ?

Let's break down the addition of 10.9 and 8000 step by step:

   10.9      <-- Start with the rightmost column
+  8000
---------

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

   10.9
+  8000
---------
     9


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

   10.9
+  8000
---------
     0.9


    Add the digits in the rightmost column:
        1 + 8 + 0 = 9
        Write down 9 in the rightmost column, carry over 0 to the next column.

   10.9
+  8000
---------
     90.9

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

The final result is 90.9.
So, 10.9 + 8000 = 90.9

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11 88 99 11 plus 88
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11.2 102 113.2 11.2 plus 102
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3.7 3.3 7 3.7 plus 3.3
9.9 9.1 19 9.9 plus 9.1

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