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	71	80	9 plus 71
9.1	77	86.1	9.1 plus 77
9.2	86	95.2	9.2 plus 86
2.6	2.4	5	2.6 plus 2.4
6.9	4.3	11.2	6.9 plus 4.3
0.4	9.8	10.2	0.4 plus 9.8