12.9 Plus 387 Addition :

Number 1	Number 2	Answer
12.9	387	399.9

How to calculate 12.9 plus 387 ?

Let's break down the addition of 012.9 and 38700 step by step:

   012.9      <-- Start with the rightmost column
+  38700
---------

    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
+  38700
---------
     9


    Add the digits in the rightmost column:
        2 + 7 + 0 = 9
        Write down 9 in the rightmost column, carry over 0 to the next column.

   012.9
+  38700
---------
     9.9


    Add the digits in the rightmost column:
        1 + 8 + 0 = 9
        Write down 9 in the rightmost column, carry over 0 to the next column.

   012.9
+  38700
---------
     99.9


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

   012.9
+  38700
---------
     399.9

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

The final result is 399.9.

Similar Summation Operations :

Number 1	Number 2	ANSWER:	HOW TO ?
13	389	402	13 plus 389
13.1	393	406.1	13.1 plus 393
13.2	397	410.2	13.2 plus 397
9.7	7.6	17.3	9.7 plus 7.6
4.4	1	5.4	4.4 plus 1
6.2	2.9	9.1	6.2 plus 2.9