20.4 Plus 421.9 Addition :

Number 1	Number 2	Answer
20.4	421.9	442.3

How to calculate 20.4 plus 421.9 ?

Let's break down the addition of 020.4 and 421.9 step by step:

   020.4      <-- Start with the rightmost column
+  421.9
---------

    Add the digits in the rightmost column:
        4 + 9 + 1 = 13
        Write down 3 in the rightmost column, carry over 1 to the next column.

   020.4
+  421.9
---------
     3


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

   020.4
+  421.9
---------
     2.3


    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.

   020.4
+  421.9
---------
     42.3


    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.

   020.4
+  421.9
---------
     442.3

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

The final result is 442.3.

Similar Summation Operations :

Number 1	Number 2	ANSWER:	HOW TO ?
20.5	430.9	451.4	20.5 plus 430.9
20.6	433.9	454.5	20.6 plus 433.9
20.7	439.9	460.6	20.7 plus 439.9
9	8.5	17.5	9 plus 8.5
5.7	3.3	9	5.7 plus 3.3
1.1	2.4	3.5	1.1 plus 2.4