80.4 Plus 420 Addition :

Number 1	Number 2	Answer
80.4	420	500.4

How to calculate 80.4 plus 420 ?

Let's break down the addition of 080.4 and 42000 step by step:

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

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

   080.4
+  42000
---------
     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.

   080.4
+  42000
---------
     0.4


    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.

   080.4
+  42000
---------
     00.4


    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.

   080.4
+  42000
---------
     500.4

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

The final result is 500.4.

Similar Summation Operations :

Number 1	Number 2	ANSWER:	HOW TO ?
80.5	429	509.5	80.5 plus 429
80.6	431	511.6	80.6 plus 431
80.7	440	520.7	80.7 plus 440
7	8.9	15.9	7 plus 8.9
5.6	4.9	10.5	5.6 plus 4.9
6.2	5.3	11.5	6.2 plus 5.3