2.9 Plus 1 Addition :

Number 1	Number 2	Answer
2.9	1	3.9

How to calculate 2.9 plus 1 ?

Let's break down the addition of 2.9 and 100 step by step:

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

    Add the digits in the rightmost column:
        9 + 0 + 0 = 9
        Write down 9 in the rightmost column, carry over 0 to the next column.

   2.9
+  100
---------
     9


    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.

   2.9
+  100
---------
     3.9

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

The final result is 3.9.

Similar Summation Operations :

Number 1	Number 2	ANSWER:	HOW TO ?
3	8	11	3 plus 8
3.1	14	17.1	3.1 plus 14
3.2	20	23.2	3.2 plus 20
3.7	5.9	9.6	3.7 plus 5.9
2.8	3.8	6.6	2.8 plus 3.8
0.4	4.6	5	0.4 plus 4.6