21 Plus 670.9 Addition :

Number 1	Number 2	Answer
21	670.9	691.9

How to calculate 21 plus 670.9 ?

Let's break down the addition of 02100 and 670.9 step by step:

   02100      <-- Start with the rightmost column
+  670.9
---------

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

   02100
+  670.9
---------
     9


    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
+  670.9
---------
     09


    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
+  670.9
---------
     109


    Add the digits in the rightmost column:
        2 + 7 + 0 = 9
        Write down 9 in the rightmost column, carry over 0 to the next column.

   02100
+  670.9
---------
     9109


    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
+  670.9
---------
     69109

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

The final result is 69109.

Similar Summation Operations :

Number 1	Number 2	ANSWER:	HOW TO ?
21.1	678.9	700	21.1 plus 678.9
21.2	680.9	702.1	21.2 plus 680.9
21.3	681.9	703.2	21.3 plus 681.9
9.1	9.3	18.4	9.1 plus 9.3
8.1	3.4	11.5	8.1 plus 3.4
5.1	8.5	13.6	5.1 plus 8.5