9.9 Plus 42 Addition :

Number 1	Number 2	Answer
9.9	42	51.9

How to calculate 9.9 plus 42 ?

Let's break down the addition of 09.9 and 4200 step by step:

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

    Add the digits in the rightmost column:
        9 + 0 + 0 = 9
        Write down 9 in the rightmost column, carry over 0 to the next column.

   09.9
+  4200
---------
     9


    Add the digits in the rightmost column:
        9 + 2 + 1 = 11
        Write down 1 in the rightmost column, carry over 1 to the next column.

   09.9
+  4200
---------
     1.9


    Add the digits in the rightmost column:
        0 + 4 + 0 = 5
        Write down 5 in the rightmost column, carry over 0 to the next column.

   09.9
+  4200
---------
     51.9

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

The final result is 51.9.

Similar Summation Operations :

Number 1	Number 2	ANSWER:	HOW TO ?
10	49	59	10 plus 49
10.1	57	67.1	10.1 plus 57
10.2	63	73.2	10.2 plus 63
7.9	0.6	8.5	7.9 plus 0.6
4.3	8.1	12.4	4.3 plus 8.1
2.8	9.8	12.6	2.8 plus 9.8