9.9 Plus 420 Addition :

Number 1	Number 2	Answer
9.9	420	429.9

How to calculate 9.9 plus 420 ?

Let's break down the addition of 009.9 and 42000 step by step:

   009.9      <-- Start with the rightmost column
+  42000
---------

    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.

   009.9
+  42000
---------
     9


    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.

   009.9
+  42000
---------
     9.9


    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.

   009.9
+  42000
---------
     29.9


    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.

   009.9
+  42000
---------
     429.9

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

The final result is 429.9.

Similar Summation Operations :

Number 1	Number 2	ANSWER:	HOW TO ?
10	424	434	10 plus 424
10.1	431	441.1	10.1 plus 431
10.2	440	450.2	10.2 plus 440
2.4	7.9	10.3	2.4 plus 7.9
9.3	0.4	9.7	9.3 plus 0.4
1.2	3.9	5.1	1.2 plus 3.9