8.5 Plus 129.9 Addition :

Number 1	Number 2	Answer
8.5	129.9	138.4

How to calculate 8.5 plus 129.9 ?

Let's break down the addition of 008.5 and 129.9 step by step:

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

    Add the digits in the rightmost column:
        5 + 9 + 1 = 14
        Write down 4 in the rightmost column, carry over 1 to the next column.

   008.5
+  129.9
---------
     4


    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.

   008.5
+  129.9
---------
     8.4


    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.

   008.5
+  129.9
---------
     38.4


    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.

   008.5
+  129.9
---------
     138.4

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

The final result is 138.4.

Similar Summation Operations :

Number 1	Number 2	ANSWER:	HOW TO ?
8.6	130.9	139.5	8.6 plus 130.9
8.7	138.9	147.6	8.7 plus 138.9
8.8	139.9	148.7	8.8 plus 139.9
1.2	1.7	2.9	1.2 plus 1.7
0.4	8	8.4	0.4 plus 8
6.3	7.7	14	6.3 plus 7.7