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	17	26.1	9.1 plus 17
9.2	19	28.2	9.2 plus 19
2.8	2.2	5	2.8 plus 2.2
2.4	3.6	6	2.4 plus 3.6
6.9	6.7	13.6	6.9 plus 6.7