8.9 Plus 420 Addition :

Number 1	Number 2	Answer
8.9	420	428.9

How to calculate 8.9 plus 420 ?

Let's break down the addition of 008.9 and 42000 step by step:

   008.9      <-- 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.

   008.9
+  42000
---------
     9


    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.

   008.9
+  42000
---------
     8.9


    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.

   008.9
+  42000
---------
     28.9


    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.

   008.9
+  42000
---------
     428.9

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

The final result is 428.9.

Similar Summation Operations :

Number 1	Number 2	ANSWER:	HOW TO ?
9	422	431	9 plus 422
9.1	427	436.1	9.1 plus 427
9.2	430	439.2	9.2 plus 430
1.8	8.3	10.1	1.8 plus 8.3
6.1	6.8	12.9	6.1 plus 6.8
7.8	0.8	8.6	7.8 plus 0.8