12.1 Plus 387.9 Addition :

Number 1	Number 2	Answer
12.1	387.9	400

How to calculate 12.1 plus 387.9 ?

Let's break down the addition of 012.1 and 387.9 step by step:

   012.1      <-- Start with the rightmost column
+  387.9
---------

    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
+  387.9
---------
     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.

   012.1
+  387.9
---------
     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.

   012.1
+  387.9
---------
     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.

   012.1
+  387.9
---------
     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 ?
12.2	395.9	408.1	12.2 plus 395.9
12.3	402.9	415.2	12.3 plus 402.9
12.4	408.9	421.3	12.4 plus 408.9
6	6	12	6 plus 6
9.4	0.7	10.1	9.4 plus 0.7
6.7	5.9	12.6	6.7 plus 5.9