3.9 Plus 8 Addition :

Number 1	Number 2	Answer
3.9	8	11.9

How to calculate 3.9 plus 8 ?

Let's break down the addition of 3.9 and 800 step by step:

   3.9      <-- Start with the rightmost column
+  800
---------

    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.

   3.9
+  800
---------
     9


    Add the digits in the rightmost column:
        3 + 8 + 1 = 11
        Write down 1 in the rightmost column, carry over 1 to the next column.

   3.9
+  800
---------
     1.9

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

The final result is 11.9.

Similar Summation Operations :

Number 1	Number 2	ANSWER:	HOW TO ?
4	16	20	4 plus 16
4.1	23	27.1	4.1 plus 23
4.2	28	32.2	4.2 plus 28
7.5	5.8	13.3	7.5 plus 5.8
3.9	8.5	12.4	3.9 plus 8.5
7	7.4	14.4	7 plus 7.4