6.9 Plus 15 Addition :

Number 1	Number 2	Answer
6.9	15	21.9

How to calculate 6.9 plus 15 ?

Let's break down the addition of 06.9 and 1500 step by step:

   06.9      <-- Start with the rightmost column
+  1500
---------

    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.

   06.9
+  1500
---------
     9


    Add the digits in the rightmost column:
        6 + 5 + 1 = 11
        Write down 1 in the rightmost column, carry over 1 to the next column.

   06.9
+  1500
---------
     1.9


    Add the digits in the rightmost column:
        0 + 1 + 0 = 2
        Write down 2 in the rightmost column, carry over 0 to the next column.

   06.9
+  1500
---------
     21.9

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

The final result is 21.9.

Similar Summation Operations :

Number 1	Number 2	ANSWER:	HOW TO ?
7	23	30	7 plus 23
7.1	32	39.1	7.1 plus 32
7.2	35	42.2	7.2 plus 35
5.5	1.3	6.8	5.5 plus 1.3
3.3	8.2	11.5	3.3 plus 8.2
6.7	0.2	6.9	6.7 plus 0.2