4.2 Plus 77 Addition :

Number 1	Number 2	Answer
4.2	77	81.2

How to calculate 4.2 plus 77 ?

Let's break down the addition of 04.2 and 7700 step by step:

   04.2      <-- Start with the rightmost column
+  7700
---------

    Add the digits in the rightmost column:
        2 + 0 + 0 = 2
        Write down 2 in the rightmost column, carry over 0 to the next column.

   04.2
+  7700
---------
     2


    Add the digits in the rightmost column:
        4 + 7 + 1 = 11
        Write down 1 in the rightmost column, carry over 1 to the next column.

   04.2
+  7700
---------
     1.2


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

   04.2
+  7700
---------
     81.2

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

The final result is 81.2.

Similar Summation Operations :

Number 1	Number 2	ANSWER:	HOW TO ?
4.3	80	84.3	4.3 plus 80
4.4	82	86.4	4.4 plus 82
4.5	83	87.5	4.5 plus 83
4	4.9	8.9	4 plus 4.9
7.1	4.9	12	7.1 plus 4.9
8.7	1	9.7	8.7 plus 1