12.1 Plus 138.9 Addition :

Number 1	Number 2	Answer
12.1	138.9	151

How to calculate 12.1 plus 138.9 ?

Let's break down the addition of 012.1 and 138.9 step by step:

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

    Add the digits in the rightmost column:
        1 + 9 + 1 = 10
        Write down 0 in the rightmost column, carry over 1 to the next column.

   012.1
+  138.9
---------
     0


    Add the digits in the rightmost column:
        2 + 8 + 1 = 11
        Write down 1 in the rightmost column, carry over 1 to the next column.

   012.1
+  138.9
---------
     1.0


    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.

   012.1
+  138.9
---------
     51.0


    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.

   012.1
+  138.9
---------
     151.0

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

The final result is 151.0.

Similar Summation Operations :

Number 1	Number 2	ANSWER:	HOW TO ?
12.2	147.9	160.1	12.2 plus 147.9
12.3	151.9	164.2	12.3 plus 151.9
12.4	156.9	169.3	12.4 plus 156.9
6.6	5.8	12.4	6.6 plus 5.8
9.6	3.6	13.2	9.6 plus 3.6
8.3	8	16.3	8.3 plus 8