8.9 Plus 64 Addition :

Number 1	Number 2	Answer
8.9	64	72.9

How to calculate 8.9 plus 64 ?

Let's break down the addition of 08.9 and 6400 step by step:

   08.9      <-- Start with the rightmost column
+  6400
---------

    Add the digits in the rightmost column:
        9 + 0 + 0 = 9
        Write down 9 in the rightmost column, carry over 0 to the next column.

   08.9
+  6400
---------
     9


    Add the digits in the rightmost column:
        8 + 4 + 1 = 12
        Write down 2 in the rightmost column, carry over 1 to the next column.

   08.9
+  6400
---------
     2.9


    Add the digits in the rightmost column:
        0 + 6 + 0 = 7
        Write down 7 in the rightmost column, carry over 0 to the next column.

   08.9
+  6400
---------
     72.9

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

The final result is 72.9.

Similar Summation Operations :

Number 1	Number 2	ANSWER:	HOW TO ?
9	69	78	9 plus 69
9.1	71	80.1	9.1 plus 71
9.2	79	88.2	9.2 plus 79
9.3	6.7	16	9.3 plus 6.7
1.3	4.3	5.6	1.3 plus 4.3
8.2	3.9	12.1	8.2 plus 3.9