21 Plus 840.4 Addition :

Number 1	Number 2	Answer
21	840.4	861.4

How to calculate 21 plus 840.4 ?

Let's break down the addition of 02100 and 840.4 step by step:

   02100      <-- Start with the rightmost column
+  840.4
---------

    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
+  840.4
---------
     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
+  840.4
---------
     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
+  840.4
---------
     104


    Add the digits in the rightmost column:
        2 + 4 + 0 = 6
        Write down 6 in the rightmost column, carry over 0 to the next column.

   02100
+  840.4
---------
     6104


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

   02100
+  840.4
---------
     86104

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

The final result is 86104.

Similar Summation Operations :

Number 1	Number 2	ANSWER:	HOW TO ?
21.1	849.4	870.5	21.1 plus 849.4
21.2	857.4	878.6	21.2 plus 857.4
21.3	859.4	880.7	21.3 plus 859.4
9.1	4.5	13.6	9.1 plus 4.5
1.6	0.2	1.8	1.6 plus 0.2
5.4	4.9	10.3	5.4 plus 4.9