20.4 Plus 664 Addition :

Number 1	Number 2	Answer
20.4	664	684.4

How to calculate 20.4 plus 664 ?

Let's break down the addition of 020.4 and 66400 step by step:

   020.4      <-- Start with the rightmost column
+  66400
---------

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

   020.4
+  66400
---------
     4


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

   020.4
+  66400
---------
     4.4


    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
+  66400
---------
     84.4


    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
+  66400
---------
     684.4

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

The final result is 684.4.

Similar Summation Operations :

Number 1	Number 2	ANSWER:	HOW TO ?
20.5	673	693.5	20.5 plus 673
20.6	682	702.6	20.6 plus 682
20.7	688	708.7	20.7 plus 688
5.7	2.6	8.3	5.7 plus 2.6
2.6	9.7	12.3	2.6 plus 9.7
6.8	6.6	13.4	6.8 plus 6.6