80.9 Plus 421 Addition :

Number 1	Number 2	Answer
80.9	421	501.9

How to calculate 80.9 plus 421 ?

Let's break down the addition of 080.9 and 42100 step by step:

   080.9      <-- Start with the rightmost column
+  42100
---------

    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
+  42100
---------
     9


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

   080.9
+  42100
---------
     1.9


    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
+  42100
---------
     01.9


    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
+  42100
---------
     501.9

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

The final result is 501.9.

Similar Summation Operations :

Number 1	Number 2	ANSWER:	HOW TO ?
81	423	504	81 plus 423
81.1	430	511.1	81.1 plus 430
81.2	439	520.2	81.2 plus 439
1.2	4.5	5.7	1.2 plus 4.5
9.3	0.7	10	9.3 plus 0.7
9.6	3.2	12.8	9.6 plus 3.2