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	147.9	160	12.1 plus 147.9
12.2	148.9	161.1	12.2 plus 148.9
12.3	149.9	162.2	12.3 plus 149.9
7.3	5.2	12.5	7.3 plus 5.2
7.4	1.1	8.5	7.4 plus 1.1
7.4	2.5	9.9	7.4 plus 2.5