80.9 Plus 420 Addition :

Number 1	Number 2	Answer
80.9	420	500.9

How to calculate 80.9 plus 420 ?

Let's break down the addition of 080.9 and 42000 step by step:

   080.9      <-- 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.

   080.9
+  42000
---------
     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.

   080.9
+  42000
---------
     0.9


    Add the digits in the rightmost column:
        8 + 2 + 1 = 10
        Write down 0 in the rightmost column, carry over 1 to the next column.

   080.9
+  42000
---------
     00.9


    Add the digits in the rightmost column:
        0 + 4 + 0 = 5
        Write down 5 in the rightmost column, carry over 0 to the next column.

   080.9
+  42000
---------
     500.9

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

The final result is 500.9.

Similar Summation Operations :

Number 1	Number 2	ANSWER:	HOW TO ?
81	426	507	81 plus 426
81.1	433	514.1	81.1 plus 433
81.2	442	523.2	81.2 plus 442
0.4	8.6	9	0.4 plus 8.6
5	4.6	9.6	5 plus 4.6
5.5	5.9	11.4	5.5 plus 5.9