2.1 Plus 1 Addition :

Number 1	Number 2	Answer
2.1	1	3.1

How to calculate 2.1 plus 1 ?

Let's break down the addition of 2.1 and 100 step by step:

   2.1      <-- Start with the rightmost column
+  100
---------

    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
+  100
---------
     1


    Add the digits in the rightmost column:
        2 + 1 + 0 = 3
        Write down 3 in the rightmost column, carry over 0 to the next column.

   2.1
+  100
---------
     3.1

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

The final result is 3.1.

Similar Summation Operations :

Number 1	Number 2	ANSWER:	HOW TO ?
2.2	9	11.2	2.2 plus 9
2.3	17	19.3	2.3 plus 17
2.4	19	21.4	2.4 plus 19
5.3	5.2	10.5	5.3 plus 5.2
5.6	9.8	15.4	5.6 plus 9.8
4	1	5	4 plus 1