80.1 Plus 9 Addition :

Number 1	Number 2	Answer
80.1	9	89.1

How to calculate 80.1 plus 9 ?

Let's break down the addition of 80.1 and 0900 step by step:

   80.1      <-- Start with the rightmost column
+  0900
---------

    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.

   80.1
+  0900
---------
     1


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

   80.1
+  0900
---------
     9.1


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

   80.1
+  0900
---------
     89.1

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

The final result is 89.1.

Similar Summation Operations :

Number 1	Number 2	ANSWER:	HOW TO ?
80.2	13	93.2	80.2 plus 13
80.3	19	99.3	80.3 plus 19
80.4	28	108.4	80.4 plus 28
1.7	5	6.7	1.7 plus 5
2.4	8.5	10.9	2.4 plus 8.5
2.8	7.6	10.4	2.8 plus 7.6