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	89	110	21 plus 89
21.1	92	113.1	21.1 plus 92
21.2	98	119.2	21.2 plus 98
5	7	12	5 plus 7
7.4	3.3	10.7	7.4 plus 3.3
9.7	9.3	19	9.7 plus 9.3