12.9 Plus 387.7 Addition :

Number 1	Number 2	Answer
12.9	387.7	400.6

How to calculate 12.9 plus 387.7 ?

Let's break down the addition of 012.9 and 387.7 step by step:

   012.9      <-- Start with the rightmost column
+  387.7
---------

    Add the digits in the rightmost column:
        9 + 7 + 1 = 16
        Write down 6 in the rightmost column, carry over 1 to the next column.

   012.9
+  387.7
---------
     6


    Add the digits in the rightmost column:
        2 + 7 + 1 = 10
        Write down 0 in the rightmost column, carry over 1 to the next column.

   012.9
+  387.7
---------
     0.6


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

   012.9
+  387.7
---------
     00.6


    Add the digits in the rightmost column:
        0 + 3 + 0 = 4
        Write down 4 in the rightmost column, carry over 0 to the next column.

   012.9
+  387.7
---------
     400.6

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

The final result is 400.6.

Similar Summation Operations :

Number 1	Number 2	ANSWER:	HOW TO ?
13	391.7	404.7	13 plus 391.7
13.1	396.7	409.8	13.1 plus 396.7
13.2	401.7	414.9	13.2 plus 401.7
4.2	9	13.2	4.2 plus 9
9.7	3.7	13.4	9.7 plus 3.7
6.3	9.2	15.5	6.3 plus 9.2