8.4 Plus 400 Addition :

Number 1	Number 2	Answer
8.4	400	408.4

How to calculate 8.4 plus 400 ?

Let's break down the addition of 008.4 and 40000 step by step:

   008.4      <-- Start with the rightmost column
+  40000
---------

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

   008.4
+  40000
---------
     4


    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.

   008.4
+  40000
---------
     8.4


    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.

   008.4
+  40000
---------
     08.4


    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.

   008.4
+  40000
---------
     408.4

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

The final result is 408.4.

Similar Summation Operations :

Number 1	Number 2	ANSWER:	HOW TO ?
8.5	409	417.5	8.5 plus 409
8.6	414	422.6	8.6 plus 414
8.7	418	426.7	8.7 plus 418
2.5	3.9	6.4	2.5 plus 3.9
5.7	6.7	12.4	5.7 plus 6.7
5.8	8.1	13.9	5.8 plus 8.1