2.1 Plus 3 Addition :

Number 1	Number 2	Answer
2.1	3	5.1

How to calculate 2.1 plus 3 ?

Let's break down the addition of 2.1 and 300 step by step:

   2.1      <-- Start with the rightmost column
+  300
---------

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

   2.1
+  300
---------
     1


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

   2.1
+  300
---------
     5.1

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

The final result is 5.1.

Similar Summation Operations :

Number 1	Number 2	ANSWER:	HOW TO ?
2.2	12	14.2	2.2 plus 12
2.3	21	23.3	2.3 plus 21
2.4	27	29.4	2.4 plus 27
3.5	7.5	11	3.5 plus 7.5
1.7	4.7	6.4	1.7 plus 4.7
4	5	9	4 plus 5