2.1 Plus 9 Addition :

Number 1	Number 2	Answer
2.1	9	11.1

How to calculate 2.1 plus 9 ?

Let's break down the addition of 2.1 and 900 step by step:

   2.1      <-- Start with the rightmost column
+  900
---------

    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
+  900
---------
     1


    Add the digits in the rightmost column:
        2 + 9 + 1 = 11
        Write down 1 in the rightmost column, carry over 1 to the next column.

   2.1
+  900
---------
     1.1

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

The final result is 11.1.

Similar Summation Operations :

Number 1	Number 2	ANSWER:	HOW TO ?
2.2	13	15.2	2.2 plus 13
2.3	20	22.3	2.3 plus 20
2.4	25	27.4	2.4 plus 25
7.2	3	10.2	7.2 plus 3
5.6	5.2	10.8	5.6 plus 5.2
8.4	8.8	17.2	8.4 plus 8.8