8.9 Plus 1 Addition :

Number 1	Number 2	Answer
8.9	1	9.9

How to calculate 8.9 plus 1 ?

Let's break down the addition of 8.9 and 100 step by step:

   8.9      <-- 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.

   8.9
+  100
---------
     9


    Add the digits in the rightmost column:
        8 + 1 + 0 = 9
        Write down 9 in the rightmost column, carry over 0 to the next column.

   8.9
+  100
---------
     9.9

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

The final result is 9.9.

Similar Summation Operations :

Number 1	Number 2	ANSWER:	HOW TO ?
9	7	16	9 plus 7
9.1	14	23.1	9.1 plus 14
9.2	23	32.2	9.2 plus 23
4	1.1	5.1	4 plus 1.1
5.6	7.4	13	5.6 plus 7.4
7.2	8.7	15.9	7.2 plus 8.7