21.7 Plus 669 Addition :

Number 1	Number 2	Answer
21.7	669	690.7

How to calculate 21.7 plus 669 ?

Let's break down the addition of 021.7 and 66900 step by step:

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

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

   021.7
+  66900
---------
     7


    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.

   021.7
+  66900
---------
     0.7


    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.

   021.7
+  66900
---------
     90.7


    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.

   021.7
+  66900
---------
     690.7

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

The final result is 690.7.

Similar Summation Operations :

Number 1	Number 2	ANSWER:	HOW TO ?
21.8	672	693.8	21.8 plus 672
21.9	675	696.9	21.9 plus 675
22	682	704	22 plus 682
7.1	1.9	9	7.1 plus 1.9
6.3	0.7	7	6.3 plus 0.7
4	2.7	6.7	4 plus 2.7