4.2 Plus 3 Addition :

Number 1	Number 2	Answer
4.2	3	7.2

How to calculate 4.2 plus 3 ?

Let's break down the addition of 4.2 and 300 step by step:

   4.2      <-- Start with the rightmost column
+  300
---------

    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
+  300
---------
     2


    Add the digits in the rightmost column:
        4 + 3 + 0 = 7
        Write down 7 in the rightmost column, carry over 0 to the next column.

   4.2
+  300
---------
     7.2

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

The final result is 7.2.

Similar Summation Operations :

Number 1	Number 2	ANSWER:	HOW TO ?
4.3	12	16.3	4.3 plus 12
4.4	18	22.4	4.4 plus 18
4.5	25	29.5	4.5 plus 25
8.7	8.1	16.8	8.7 plus 8.1
2.1	1.4	3.5	2.1 plus 1.4
4	7.2	11.2	4 plus 7.2