12.9 Plus 387.1 Addition :

Number 1	Number 2	Answer
12.9	387.1	400

How to calculate 12.9 plus 387.1 ?

Let's break down the addition of 012.9 and 387.1 step by step:

   012.9      <-- Start with the rightmost column
+  387.1
---------

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

   012.9
+  387.1
---------
     0


    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
+  387.1
---------
     0.0


    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
+  387.1
---------
     00.0


    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
+  387.1
---------
     400.0

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

The final result is 400.0.

Similar Summation Operations :

Number 1	Number 2	ANSWER:	HOW TO ?
13	392.1	405.1	13 plus 392.1
13.1	400.1	413.2	13.1 plus 400.1
13.2	408.1	421.3	13.2 plus 408.1
4.7	0.3	5	4.7 plus 0.3
0.7	5.5	6.2	0.7 plus 5.5
7.5	7.1	14.6	7.5 plus 7.1