20.9 Plus 669 Addition :

Number 1	Number 2	Answer
20.9	669	689.9

How to calculate 20.9 plus 669 ?

Let's break down the addition of 020.9 and 66900 step by step:

   020.9      <-- Start with the rightmost column
+  66900
---------

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

   020.9
+  66900
---------
     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.

   020.9
+  66900
---------
     9.9


    Add the digits in the rightmost column:
        2 + 6 + 0 = 8
        Write down 8 in the rightmost column, carry over 0 to the next column.

   020.9
+  66900
---------
     89.9


    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.

   020.9
+  66900
---------
     689.9

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

The final result is 689.9.

Similar Summation Operations :

Number 1	Number 2	ANSWER:	HOW TO ?
21	673	694	21 plus 673
21.1	675	696.1	21.1 plus 675
21.2	679	700.2	21.2 plus 679
1.5	6.2	7.7	1.5 plus 6.2
7.3	2.7	10	7.3 plus 2.7
3.3	5.3	8.6	3.3 plus 5.3