20.4 Plus 669.4 Addition :

Number 1	Number 2	Answer
20.4	669.4	689.8

How to calculate 20.4 plus 669.4 ?

Let's break down the addition of 020.4 and 669.4 step by step:

   020.4      <-- Start with the rightmost column
+  669.4
---------

    Add the digits in the rightmost column:
        4 + 4 + 0 = 8
        Write down 8 in the rightmost column, carry over 0 to the next column.

   020.4
+  669.4
---------
     8


    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.

   020.4
+  669.4
---------
     9.8


    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.

   020.4
+  669.4
---------
     89.8


    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.

   020.4
+  669.4
---------
     689.8

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

The final result is 689.8.

Similar Summation Operations :

Number 1	Number 2	ANSWER:	HOW TO ?
20.5	678.4	698.9	20.5 plus 678.4
20.6	686.4	707	20.6 plus 686.4
20.7	692.4	713.1	20.7 plus 692.4
9.8	9.3	19.1	9.8 plus 9.3
7.5	6.6	14.1	7.5 plus 6.6
8	5.6	13.6	8 plus 5.6