78.9 Plus 821 Addition :

Number 1 Number 2 Answer
78.9 821 899.9

How to calculate 78.9 plus 821 ?

Let's break down the addition of 078.9 and 82100 step by step:

   078.9      <-- Start with the rightmost column
+  82100
---------

    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.

   078.9
+  82100
---------
     9


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

   078.9
+  82100
---------
     9.9


    Add the digits in the rightmost column:
        7 + 2 + 0 = 9
        Write down 9 in the rightmost column, carry over 0 to the next column.

   078.9
+  82100
---------
     99.9


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

   078.9
+  82100
---------
     899.9

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

The final result is 899.9.
So, 078.9 + 82100 = 899.9

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