21 Plus 400.4 Addition :

Number 1	Number 2	Answer
21	400.4	421.4

How to calculate 21 plus 400.4 ?

Let's break down the addition of 02100 and 400.4 step by step:

   02100      <-- Start with the rightmost column
+  400.4
---------

    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.

   02100
+  400.4
---------
     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.

   02100
+  400.4
---------
     04


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

   02100
+  400.4
---------
     104


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

   02100
+  400.4
---------
     2104


    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.

   02100
+  400.4
---------
     42104

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

The final result is 42104.

Similar Summation Operations :

Number 1	Number 2	ANSWER:	HOW TO ?
21.1	408.4	429.5	21.1 plus 408.4
21.2	414.4	435.6	21.2 plus 414.4
21.3	417.4	438.7	21.3 plus 417.4
5.5	4.4	9.9	5.5 plus 4.4
0.7	8.3	9	0.7 plus 8.3
9.6	0.9	10.5	9.6 plus 0.9