20.4 Plus 645 Addition :

Number 1	Number 2	Answer
20.4	645	665.4

How to calculate 20.4 plus 645 ?

Let's break down the addition of 020.4 and 64500 step by step:

   020.4      <-- Start with the rightmost column
+  64500
---------

    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
+  64500
---------
     4


    Add the digits in the rightmost column:
        0 + 5 + 0 = 5
        Write down 5 in the rightmost column, carry over 0 to the next column.

   020.4
+  64500
---------
     5.4


    Add the digits in the rightmost column:
        2 + 4 + 0 = 6
        Write down 6 in the rightmost column, carry over 0 to the next column.

   020.4
+  64500
---------
     65.4


    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
+  64500
---------
     665.4

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

The final result is 665.4.

Similar Summation Operations :

Number 1	Number 2	ANSWER:	HOW TO ?
20.5	649	669.5	20.5 plus 649
20.6	658	678.6	20.6 plus 658
20.7	662	682.7	20.7 plus 662
9	2.3	11.3	9 plus 2.3
4.8	1.8	6.6	4.8 plus 1.8
7.9	7.5	15.4	7.9 plus 7.5