78.5 Plus 42 Addition :

Number 1	Number 2	Answer
78.5	42	120.5

How to calculate 78.5 plus 42 ?

Let's break down the addition of 78.5 and 4200 step by step:

   78.5      <-- Start with the rightmost column
+  4200
---------

    Add the digits in the rightmost column:
        5 + 0 + 0 = 5
        Write down 5 in the rightmost column, carry over 0 to the next column.

   78.5
+  4200
---------
     5


    Add the digits in the rightmost column:
        8 + 2 + 1 = 10
        Write down 0 in the rightmost column, carry over 1 to the next column.

   78.5
+  4200
---------
     0.5


    Add the digits in the rightmost column:
        7 + 4 + 1 = 12
        Write down 2 in the rightmost column, carry over 1 to the next column.

   78.5
+  4200
---------
     20.5

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

The final result is 120.5.

Similar Summation Operations :

Number 1	Number 2	ANSWER:	HOW TO ?
78.6	46	124.6	78.6 plus 46
78.7	51	129.7	78.7 plus 51
78.8	58	136.8	78.8 plus 58
3	8.7	11.7	3 plus 8.7
6.2	6	12.2	6.2 plus 6
3.6	2.7	6.3	3.6 plus 2.7