8 Plus 400.9 Addition :

Number 1	Number 2	Answer
8	400.9	408.9

How to calculate 8 plus 400.9 ?

Let's break down the addition of 00800 and 400.9 step by step:

   00800      <-- Start with the rightmost column
+  400.9
---------

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

   00800
+  400.9
---------
     9


    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.

   00800
+  400.9
---------
     09


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

   00800
+  400.9
---------
     809


    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.

   00800
+  400.9
---------
     0809


    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.

   00800
+  400.9
---------
     40809

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

The final result is 40809.

Similar Summation Operations :

Number 1	Number 2	ANSWER:	HOW TO ?
8.1	401.9	410	8.1 plus 401.9
8.2	410.9	419.1	8.2 plus 410.9
8.3	411.9	420.2	8.3 plus 411.9
5.3	4.9	10.2	5.3 plus 4.9
5.5	6.3	11.8	5.5 plus 6.3
6.4	2.4	8.8	6.4 plus 2.4