7.7 Plus 1 Addition :

Number 1	Number 2	Answer
7.7	1	8.7

How to calculate 7.7 plus 1 ?

Let's break down the addition of 7.7 and 100 step by step:

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

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

   7.7
+  100
---------
     7


    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.

   7.7
+  100
---------
     8.7

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

The final result is 8.7.

Similar Summation Operations :

Number 1	Number 2	ANSWER:	HOW TO ?
7.8	8	15.8	7.8 plus 8
7.9	12	19.9	7.9 plus 12
8	14	22	8 plus 14
7.8	9.5	17.3	7.8 plus 9.5
3.7	1	4.7	3.7 plus 1
8.8	5.4	14.2	8.8 plus 5.4