12.3 Plus 21 Addition :

Number 1	Number 2	Answer
12.3	21	33.3

How to calculate 12.3 plus 21 ?

Let's break down the addition of 12.3 and 2100 step by step:

   12.3      <-- Start with the rightmost column
+  2100
---------

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

   12.3
+  2100
---------
     3


    Add the digits in the rightmost column:
        2 + 1 + 0 = 3
        Write down 3 in the rightmost column, carry over 0 to the next column.

   12.3
+  2100
---------
     3.3


    Add the digits in the rightmost column:
        1 + 2 + 0 = 3
        Write down 3 in the rightmost column, carry over 0 to the next column.

   12.3
+  2100
---------
     33.3

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

The final result is 33.3.

Similar Summation Operations :

Number 1	Number 2	ANSWER:	HOW TO ?
12.4	24	36.4	12.4 plus 24
12.5	32	44.5	12.5 plus 32
12.6	34	46.6	12.6 plus 34
7	9	16	7 plus 9
5	8.5	13.5	5 plus 8.5
4.1	5.8	9.9	4.1 plus 5.8