7.8 Plus 1 Addition :

Number 1	Number 2	Answer
7.8	1	8.8

How to calculate 7.8 plus 1 ?

Let's break down the addition of 7.8 and 100 step by step:

   7.8      <-- Start with the rightmost column
+  100
---------

    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
+  100
---------
     8


    Add the digits in the rightmost column:
        7 + 1 + 0 = 8
        Write down 8 in the rightmost column, carry over 0 to the next column.

   7.8
+  100
---------
     8.8

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

The final result is 8.8.

Similar Summation Operations :

Number 1	Number 2	ANSWER:	HOW TO ?
7.9	10	17.9	7.9 plus 10
8	18	26	8 plus 18
8.1	25	33.1	8.1 plus 25
7	5.7	12.7	7 plus 5.7
8.6	7.2	15.8	8.6 plus 7.2
6.4	0.4	6.8	6.4 plus 0.4