8.4 Plus 64 Addition :

Number 1	Number 2	Answer
8.4	64	72.4

How to calculate 8.4 plus 64 ?

Let's break down the addition of 08.4 and 6400 step by step:

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

    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.

   08.4
+  6400
---------
     4


    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.

   08.4
+  6400
---------
     2.4


    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.

   08.4
+  6400
---------
     72.4

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

The final result is 72.4.

Similar Summation Operations :

Number 1	Number 2	ANSWER:	HOW TO ?
8.5	72	80.5	8.5 plus 72
8.6	80	88.6	8.6 plus 80
8.7	82	90.7	8.7 plus 82
2	8.9	10.9	2 plus 8.9
1.8	7.5	9.3	1.8 plus 7.5
8	5.4	13.4	8 plus 5.4