12.9 Plus 509 Addition :

Number 1	Number 2	Answer
12.9	509	521.9

How to calculate 12.9 plus 509 ?

Let's break down the addition of 012.9 and 50900 step by step:

   012.9      <-- Start with the rightmost column
+  50900
---------

    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.

   012.9
+  50900
---------
     9


    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.

   012.9
+  50900
---------
     1.9


    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.

   012.9
+  50900
---------
     21.9


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

   012.9
+  50900
---------
     521.9

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

The final result is 521.9.

Similar Summation Operations :

Number 1	Number 2	ANSWER:	HOW TO ?
13	516	529	13 plus 516
13.1	524	537.1	13.1 plus 524
13.2	532	545.2	13.2 plus 532
2.1	6	8.1	2.1 plus 6
8.1	0.5	8.6	8.1 plus 0.5
9.8	1.7	11.5	9.8 plus 1.7