7.8 Plus 15 Addition :

Number 1	Number 2	Answer
7.8	15	22.8

How to calculate 7.8 plus 15 ?

Let's break down the addition of 07.8 and 1500 step by step:

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

    Add the digits in the rightmost column:
        8 + 0 + 0 = 8
        Write down 8 in the rightmost column, carry over 0 to the next column.

   07.8
+  1500
---------
     8


    Add the digits in the rightmost column:
        7 + 5 + 1 = 12
        Write down 2 in the rightmost column, carry over 1 to the next column.

   07.8
+  1500
---------
     2.8


    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.

   07.8
+  1500
---------
     22.8

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

The final result is 22.8.

Similar Summation Operations :

Number 1	Number 2	ANSWER:	HOW TO ?
7.9	18	25.9	7.9 plus 18
8	24	32	8 plus 24
8.1	26	34.1	8.1 plus 26
6.6	7.1	13.7	6.6 plus 7.1
3.3	2	5.3	3.3 plus 2
9.9	1.1	11	9.9 plus 1.1