15.9 Plus 123 Addition :

Number 1	Number 2	Answer
15.9	123	138.9

How to calculate 15.9 plus 123 ?

Let's break down the addition of 015.9 and 12300 step by step:

   015.9      <-- Start with the rightmost column
+  12300
---------

    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.

   015.9
+  12300
---------
     9


    Add the digits in the rightmost column:
        5 + 3 + 0 = 8
        Write down 8 in the rightmost column, carry over 0 to the next column.

   015.9
+  12300
---------
     8.9


    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.

   015.9
+  12300
---------
     38.9


    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.

   015.9
+  12300
---------
     138.9

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

The final result is 138.9.

Similar Summation Operations :

Number 1	Number 2	ANSWER:	HOW TO ?
16	125	141	16 plus 125
16.1	127	143.1	16.1 plus 127
16.2	134	150.2	16.2 plus 134
5.8	0.8	6.6	5.8 plus 0.8
3.2	6.6	9.8	3.2 plus 6.6
2	8.2	10.2	2 plus 8.2