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	6	13.9	7.9 plus 6
8	9	17	8 plus 9
8.1	12	20.1	8.1 plus 12
8.9	4.2	13.1	8.9 plus 4.2
4	2.7	6.7	4 plus 2.7
3.6	7.7	11.3	3.6 plus 7.7