8.6 Plus 129.9 Addition :

Number 1	Number 2	Answer
8.6	129.9	138.5

How to calculate 8.6 plus 129.9 ?

Let's break down the addition of 008.6 and 129.9 step by step:

   008.6      <-- Start with the rightmost column
+  129.9
---------

    Add the digits in the rightmost column:
        6 + 9 + 1 = 15
        Write down 5 in the rightmost column, carry over 1 to the next column.

   008.6
+  129.9
---------
     5


    Add the digits in the rightmost column:
        8 + 9 + 1 = 18
        Write down 8 in the rightmost column, carry over 1 to the next column.

   008.6
+  129.9
---------
     8.5


    Add the digits in the rightmost column:
        0 + 2 + 0 = 3
        Write down 3 in the rightmost column, carry over 0 to the next column.

   008.6
+  129.9
---------
     38.5


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

   008.6
+  129.9
---------
     138.5

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

The final result is 138.5.

Similar Summation Operations :

Number 1	Number 2	ANSWER:	HOW TO ?
8.7	138.9	147.6	8.7 plus 138.9
8.8	144.9	153.7	8.8 plus 144.9
8.9	151.9	160.8	8.9 plus 151.9
2.1	4.5	6.6	2.1 plus 4.5
5	6.8	11.8	5 plus 6.8
5.8	9.5	15.3	5.8 plus 9.5