9.9 Plus 31 Addition :

Number 1	Number 2	Answer
9.9	31	40.9

How to calculate 9.9 plus 31 ?

Let's break down the addition of 09.9 and 3100 step by step:

   09.9      <-- Start with the rightmost column
+  3100
---------

    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.

   09.9
+  3100
---------
     9


    Add the digits in the rightmost column:
        9 + 1 + 1 = 10
        Write down 0 in the rightmost column, carry over 1 to the next column.

   09.9
+  3100
---------
     0.9


    Add the digits in the rightmost column:
        0 + 3 + 0 = 4
        Write down 4 in the rightmost column, carry over 0 to the next column.

   09.9
+  3100
---------
     40.9

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

The final result is 40.9.

Similar Summation Operations :

Number 1	Number 2	ANSWER:	HOW TO ?
10	32	42	10 plus 32
10.1	33	43.1	10.1 plus 33
10.2	42	52.2	10.2 plus 42
5.9	1	6.9	5.9 plus 1
5.8	1.1	6.9	5.8 plus 1.1
2.3	0.2	2.5	2.3 plus 0.2