12.2 Plus 9 Addition :

Number 1	Number 2	Answer
12.2	9	21.2

How to calculate 12.2 plus 9 ?

Let's break down the addition of 12.2 and 0900 step by step:

   12.2      <-- Start with the rightmost column
+  0900
---------

    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.

   12.2
+  0900
---------
     2


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

   12.2
+  0900
---------
     1.2


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

   12.2
+  0900
---------
     21.2

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

The final result is 21.2.

Similar Summation Operations :

Number 1	Number 2	ANSWER:	HOW TO ?
12.3	13	25.3	12.3 plus 13
12.4	19	31.4	12.4 plus 19
12.5	23	35.5	12.5 plus 23
2.4	3.1	5.5	2.4 plus 3.1
6.7	6.7	13.4	6.7 plus 6.7
1.7	9.8	11.5	1.7 plus 9.8