28.4 Plus 421 Addition :

Number 1 Number 2 Answer
28.4 421 449.4

How to calculate 28.4 plus 421 ?

Let's break down the addition of 028.4 and 42100 step by step:

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

    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.

   028.4
+  42100
---------
     4


    Add the digits in the rightmost column:
        8 + 1 + 0 = 9
        Write down 9 in the rightmost column, carry over 0 to the next column.

   028.4
+  42100
---------
     9.4


    Add the digits in the rightmost column:
        2 + 2 + 0 = 4
        Write down 4 in the rightmost column, carry over 0 to the next column.

   028.4
+  42100
---------
     49.4


    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.

   028.4
+  42100
---------
     449.4

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

The final result is 449.4.
So, 028.4 + 42100 = 449.4

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