4.2 Plus 8 Addition :

Number 1	Number 2	Answer
4.2	8	12.2

How to calculate 4.2 plus 8 ?

Let's break down the addition of 4.2 and 800 step by step:

   4.2      <-- Start with the rightmost column
+  800
---------

    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.

   4.2
+  800
---------
     2


    Add the digits in the rightmost column:
        4 + 8 + 1 = 12
        Write down 2 in the rightmost column, carry over 1 to the next column.

   4.2
+  800
---------
     2.2

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

The final result is 12.2.

Similar Summation Operations :

Number 1	Number 2	ANSWER:	HOW TO ?
4.3	13	17.3	4.3 plus 13
4.4	21	25.4	4.4 plus 21
4.5	28	32.5	4.5 plus 28
3.9	3	6.9	3.9 plus 3
3.3	1.4	4.7	3.3 plus 1.4
6	8.2	14.2	6 plus 8.2