3 Plus 0.9 Addition :

Number 1	Number 2	Answer
3	0.9	3.9

How to calculate 3 plus 0.9 ?

Let's break down the addition of 300 and 0.9 step by step:

   300      <-- Start with the rightmost column
+  0.9
---------

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

   300
+  0.9
---------
     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.

   300
+  0.9
---------
     09


    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.

   300
+  0.9
---------
     309

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

The final result is 309.

Similar Summation Operations :

Number 1	Number 2	ANSWER:	HOW TO ?
3.1	4.9	8	3.1 plus 4.9
3.2	13.9	17.1	3.2 plus 13.9
3.3	22.9	26.2	3.3 plus 22.9
3.7	2.1	5.8	3.7 plus 2.1
8.5	0.2	8.7	8.5 plus 0.2
5.4	4.2	9.6	5.4 plus 4.2