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	428	509	81 plus 428
81.1	432	513.1	81.1 plus 432
81.2	439	520.2	81.2 plus 439
8.3	9.5	17.8	8.3 plus 9.5
6.4	9	15.4	6.4 plus 9
9	8.8	17.8	9 plus 8.8