8 Plus 3.9 Addition :

Number 1	Number 2	Answer
8	3.9	11.9

How to calculate 8 plus 3.9 ?

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

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

    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.

   800
+  3.9
---------
     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.

   800
+  3.9
---------
     09


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

   800
+  3.9
---------
     109

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

The final result is 1109.

Similar Summation Operations :

Number 1	Number 2	ANSWER:	HOW TO ?
8.1	7.9	16	8.1 plus 7.9
8.2	10.9	19.1	8.2 plus 10.9
8.3	12.9	21.2	8.3 plus 12.9
4.7	7	11.7	4.7 plus 7
1.9	3.7	5.6	1.9 plus 3.7
2.2	1.6	3.8	2.2 plus 1.6