8.5 Plus 4 Addition :

Number 1	Number 2	Answer
8.5	4	12.5

How to calculate 8.5 plus 4 ?

Let's break down the addition of 8.5 and 400 step by step:

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

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

   8.5
+  400
---------
     5


    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.

   8.5
+  400
---------
     2.5

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

The final result is 12.5.

Similar Summation Operations :

Number 1	Number 2	ANSWER:	HOW TO ?
8.6	12	20.6	8.6 plus 12
8.7	18	26.7	8.7 plus 18
8.8	27	35.8	8.8 plus 27
9.1	1	10.1	9.1 plus 1
5.6	7.1	12.7	5.6 plus 7.1
3.2	0.9	4.1	3.2 plus 0.9