8.7 Plus 13 Addition :

Number 1	Number 2	Answer
8.7	13	21.7

How to calculate 8.7 plus 13 ?

Let's break down the addition of 08.7 and 1300 step by step:

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

    Add the digits in the rightmost column:
        7 + 0 + 0 = 7
        Write down 7 in the rightmost column, carry over 0 to the next column.

   08.7
+  1300
---------
     7


    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.

   08.7
+  1300
---------
     1.7


    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.

   08.7
+  1300
---------
     21.7

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

The final result is 21.7.

Similar Summation Operations :

Number 1	Number 2	ANSWER:	HOW TO ?
8.8	20	28.8	8.8 plus 20
8.9	26	34.9	8.9 plus 26
9	29	38	9 plus 29
0.5	0.3	0.8	0.5 plus 0.3
2	8.3	10.3	2 plus 8.3
8.9	8.9	17.8	8.9 plus 8.9