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	22	31	9 plus 22
9.1	28	37.1	9.1 plus 28
9.2	32	41.2	9.2 plus 32
3.5	2.5	6	3.5 plus 2.5
9.2	6.2	15.4	9.2 plus 6.2
4.7	9.5	14.2	4.7 plus 9.5