6.4 Plus 4 Addition :

Number 1	Number 2	Answer
6.4	4	10.4

How to calculate 6.4 plus 4 ?

Let's break down the addition of 6.4 and 400 step by step:

   6.4      <-- Start with the rightmost column
+  400
---------

    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.

   6.4
+  400
---------
     4


    Add the digits in the rightmost column:
        6 + 4 + 1 = 10
        Write down 0 in the rightmost column, carry over 1 to the next column.

   6.4
+  400
---------
     0.4

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

The final result is 10.4.

Similar Summation Operations :

Number 1	Number 2	ANSWER:	HOW TO ?
6.5	9	15.5	6.5 plus 9
6.6	15	21.6	6.6 plus 15
6.7	16	22.7	6.7 plus 16
2	2.4	4.4	2 plus 2.4
3.9	2.4	6.3	3.9 plus 2.4
1.9	9.4	11.3	1.9 plus 9.4