9 Plus 398.4 Addition :

Number 1	Number 2	Answer
9	398.4	407.4

How to calculate 9 plus 398.4 ?

Let's break down the addition of 00900 and 398.4 step by step:

   00900      <-- Start with the rightmost column
+  398.4
---------

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

   00900
+  398.4
---------
     4


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

   00900
+  398.4
---------
     04


    Add the digits in the rightmost column:
        9 + 8 + 1 = 17
        Write down 7 in the rightmost column, carry over 1 to the next column.

   00900
+  398.4
---------
     704


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

   00900
+  398.4
---------
     0704


    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.

   00900
+  398.4
---------
     40704

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

The final result is 40704.

Similar Summation Operations :

Number 1	Number 2	ANSWER:	HOW TO ?
9.1	402.4	411.5	9.1 plus 402.4
9.2	406.4	415.6	9.2 plus 406.4
9.3	411.4	420.7	9.3 plus 411.4
5.8	5	10.8	5.8 plus 5
7.8	5.8	13.6	7.8 plus 5.8
8	3.7	11.7	8 plus 3.7