3.9 Plus 20 Addition :

Number 1	Number 2	Answer
3.9	20	23.9

How to calculate 3.9 plus 20 ?

Let's break down the addition of 03.9 and 2000 step by step:

   03.9      <-- Start with the rightmost column
+  2000
---------

    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.

   03.9
+  2000
---------
     9


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

   03.9
+  2000
---------
     3.9


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

   03.9
+  2000
---------
     23.9

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

The final result is 23.9.

Similar Summation Operations :

Number 1	Number 2	ANSWER:	HOW TO ?
4	21	25	4 plus 21
4.1	24	28.1	4.1 plus 24
4.2	29	33.2	4.2 plus 29
2	3.2	5.2	2 plus 3.2
5.1	6	11.1	5.1 plus 6
7.3	0.7	8	7.3 plus 0.7