8.9 Plus 13 Addition :

Number 1	Number 2	Answer
8.9	13	21.9

How to calculate 8.9 plus 13 ?

Let's break down the addition of 08.9 and 1300 step by step:

   08.9      <-- Start with the rightmost column
+  1300
---------

    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.

   08.9
+  1300
---------
     9


    Add the digits in the rightmost column:
        8 + 3 + 1 = 11
        Write down 1 in the rightmost column, carry over 1 to the next column.

   08.9
+  1300
---------
     1.9


    Add the digits in the rightmost column:
        0 + 1 + 0 = 2
        Write down 2 in the rightmost column, carry over 0 to the next column.

   08.9
+  1300
---------
     21.9

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

The final result is 21.9.

Similar Summation Operations :

Number 1	Number 2	ANSWER:	HOW TO ?
9	14	23	9 plus 14
9.1	19	28.1	9.1 plus 19
9.2	24	33.2	9.2 plus 24
0.9	9.1	10	0.9 plus 9.1
7.2	8.8	16	7.2 plus 8.8
1.8	5.4	7.2	1.8 plus 5.4