80.4 Plus 129 Addition :

Number 1	Number 2	Answer
80.4	129	209.4

How to calculate 80.4 plus 129 ?

Let's break down the addition of 080.4 and 12900 step by step:

   080.4      <-- Start with the rightmost column
+  12900
---------

    Add the digits in the rightmost column:
        4 + 0 + 0 = 4
        Write down 4 in the rightmost column, carry over 0 to the next column.

   080.4
+  12900
---------
     4


    Add the digits in the rightmost column:
        0 + 9 + 0 = 9
        Write down 9 in the rightmost column, carry over 0 to the next column.

   080.4
+  12900
---------
     9.4


    Add the digits in the rightmost column:
        8 + 2 + 1 = 10
        Write down 0 in the rightmost column, carry over 1 to the next column.

   080.4
+  12900
---------
     09.4


    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.

   080.4
+  12900
---------
     209.4

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

The final result is 209.4.

Similar Summation Operations :

Number 1	Number 2	ANSWER:	HOW TO ?
80.5	133	213.5	80.5 plus 133
80.6	134	214.6	80.6 plus 134
80.7	142	222.7	80.7 plus 142
5.6	8.9	14.5	5.6 plus 8.9
7.5	1.6	9.1	7.5 plus 1.6
3.9	0.2	4.1	3.9 plus 0.2