9.9 Plus 15 Addition :

Number 1	Number 2	Answer
9.9	15	24.9

How to calculate 9.9 plus 15 ?

Let's break down the addition of 09.9 and 1500 step by step:

   09.9      <-- 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.

   09.9
+  1500
---------
     9


    Add the digits in the rightmost column:
        9 + 5 + 1 = 14
        Write down 4 in the rightmost column, carry over 1 to the next column.

   09.9
+  1500
---------
     4.9


    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.

   09.9
+  1500
---------
     24.9

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

The final result is 24.9.

Similar Summation Operations :

Number 1	Number 2	ANSWER:	HOW TO ?
10	20	30	10 plus 20
10.1	29	39.1	10.1 plus 29
10.2	37	47.2	10.2 plus 37
9	3.7	12.7	9 plus 3.7
9.8	4.5	14.3	9.8 plus 4.5
2.1	4	6.1	2.1 plus 4