12 Plus 138.9 Addition :

Number 1	Number 2	Answer
12	138.9	150.9

How to calculate 12 plus 138.9 ?

Let's break down the addition of 01200 and 138.9 step by step:

   01200      <-- Start with the rightmost column
+  138.9
---------

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

   01200
+  138.9
---------
     9


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

   01200
+  138.9
---------
     09


    Add the digits in the rightmost column:
        2 + 8 + 1 = 10
        Write down 0 in the rightmost column, carry over 1 to the next column.

   01200
+  138.9
---------
     009


    Add the digits in the rightmost column:
        1 + 3 + 0 = 5
        Write down 5 in the rightmost column, carry over 0 to the next column.

   01200
+  138.9
---------
     5009


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

   01200
+  138.9
---------
     15009

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

The final result is 15009.

Similar Summation Operations :

Number 1	Number 2	ANSWER:	HOW TO ?
12.1	140.9	153	12.1 plus 140.9
12.2	149.9	162.1	12.2 plus 149.9
12.3	158.9	171.2	12.3 plus 158.9
5.5	2	7.5	5.5 plus 2
7.7	8.2	15.9	7.7 plus 8.2
4.3	5.9	10.2	4.3 plus 5.9