9 Plus 420.4 Addition :

Number 1	Number 2	Answer
9	420.4	429.4

How to calculate 9 plus 420.4 ?

Let's break down the addition of 00900 and 420.4 step by step:

   00900      <-- Start with the rightmost column
+  420.4
---------

    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
+  420.4
---------
     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
+  420.4
---------
     04


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

   00900
+  420.4
---------
     904


    Add the digits in the rightmost column:
        0 + 2 + 0 = 2
        Write down 2 in the rightmost column, carry over 0 to the next column.

   00900
+  420.4
---------
     2904


    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
+  420.4
---------
     42904

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

The final result is 42904.

Similar Summation Operations :

Number 1	Number 2	ANSWER:	HOW TO ?
9.1	421.4	430.5	9.1 plus 421.4
9.2	422.4	431.6	9.2 plus 422.4
9.3	431.4	440.7	9.3 plus 431.4
1.3	0.4	1.7	1.3 plus 0.4
4.6	2.3	6.9	4.6 plus 2.3
5.3	4.8	10.1	5.3 plus 4.8