21.2 Plus 668.9 Addition :

Number 1	Number 2	Answer
21.2	668.9	690.1

How to calculate 21.2 plus 668.9 ?

Let's break down the addition of 021.2 and 668.9 step by step:

   021.2      <-- Start with the rightmost column
+  668.9
---------

    Add the digits in the rightmost column:
        2 + 9 + 1 = 11
        Write down 1 in the rightmost column, carry over 1 to the next column.

   021.2
+  668.9
---------
     1


    Add the digits in the rightmost column:
        1 + 8 + 1 = 10
        Write down 0 in the rightmost column, carry over 1 to the next column.

   021.2
+  668.9
---------
     0.1


    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.

   021.2
+  668.9
---------
     90.1


    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.

   021.2
+  668.9
---------
     690.1

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

The final result is 690.1.

Similar Summation Operations :

Number 1	Number 2	ANSWER:	HOW TO ?
21.3	672.9	694.2	21.3 plus 672.9
21.4	681.9	703.3	21.4 plus 681.9
21.5	687.9	709.4	21.5 plus 687.9
4.9	3.8	8.7	4.9 plus 3.8
9.9	2.3	12.2	9.9 plus 2.3
3.4	7	10.4	3.4 plus 7