21 Plus 669.8 Addition :

Number 1	Number 2	Answer
21	669.8	690.8

How to calculate 21 plus 669.8 ?

Let's break down the addition of 02100 and 669.8 step by step:

   02100      <-- Start with the rightmost column
+  669.8
---------

    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
+  669.8
---------
     8


    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
+  669.8
---------
     08


    Add the digits in the rightmost column:
        1 + 9 + 1 = 10
        Write down 0 in the rightmost column, carry over 1 to the next column.

   02100
+  669.8
---------
     008


    Add the digits in the rightmost column:
        2 + 6 + 0 = 9
        Write down 9 in the rightmost column, carry over 0 to the next column.

   02100
+  669.8
---------
     9008


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

   02100
+  669.8
---------
     69008

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

The final result is 69008.

Similar Summation Operations :

Number 1	Number 2	ANSWER:	HOW TO ?
21.1	670.8	691.9	21.1 plus 670.8
21.2	676.8	698	21.2 plus 676.8
21.3	680.8	702.1	21.3 plus 680.8
8.5	0.5	9	8.5 plus 0.5
7.4	2.9	10.3	7.4 plus 2.9
5.2	6.7	11.9	5.2 plus 6.7