20.9 Plus 80 Addition :

Number 1	Number 2	Answer
20.9	80	100.9

How to calculate 20.9 plus 80 ?

Let's break down the addition of 20.9 and 8000 step by step:

   20.9      <-- 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.

   20.9
+  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.

   20.9
+  8000
---------
     0.9


    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.

   20.9
+  8000
---------
     00.9

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

The final result is 100.9.

Similar Summation Operations :

Number 1	Number 2	ANSWER:	HOW TO ?
21	82	103	21 plus 82
21.1	84	105.1	21.1 plus 84
21.2	85	106.2	21.2 plus 85
9.8	1.3	11.1	9.8 plus 1.3
7.5	4.5	12	7.5 plus 4.5
9.8	9.5	19.3	9.8 plus 9.5