3.5 Plus 12 Addition :

Number 1	Number 2	Answer
3.5	12	15.5

How to calculate 3.5 plus 12 ?

Let's break down the addition of 03.5 and 1200 step by step:

   03.5      <-- Start with the rightmost column
+  1200
---------

    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.

   03.5
+  1200
---------
     5


    Add the digits in the rightmost column:
        3 + 2 + 0 = 5
        Write down 5 in the rightmost column, carry over 0 to the next column.

   03.5
+  1200
---------
     5.5


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

   03.5
+  1200
---------
     15.5

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

The final result is 15.5.

Similar Summation Operations :

Number 1	Number 2	ANSWER:	HOW TO ?
3.6	17	20.6	3.6 plus 17
3.7	18	21.7	3.7 plus 18
3.8	27	30.8	3.8 plus 27
8	2.7	10.7	8 plus 2.7
9.6	0.3	9.9	9.6 plus 0.3
9.9	5	14.9	9.9 plus 5