7.8 Plus 9 Addition :

Number 1	Number 2	Answer
7.8	9	16.8

How to calculate 7.8 plus 9 ?

Let's break down the addition of 7.8 and 900 step by step:

   7.8      <-- Start with the rightmost column
+  900
---------

    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.

   7.8
+  900
---------
     8


    Add the digits in the rightmost column:
        7 + 9 + 1 = 16
        Write down 6 in the rightmost column, carry over 1 to the next column.

   7.8
+  900
---------
     6.8

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

The final result is 16.8.

Similar Summation Operations :

Number 1	Number 2	ANSWER:	HOW TO ?
7.9	13	20.9	7.9 plus 13
8	21	29	8 plus 21
8.1	27	35.1	8.1 plus 27
5.1	1.2	6.3	5.1 plus 1.2
2.7	0.5	3.2	2.7 plus 0.5
8.9	4	12.9	8.9 plus 4