4.2 Plus 129 Addition :

Number 1	Number 2	Answer
4.2	129	133.2

How to calculate 4.2 plus 129 ?

Let's break down the addition of 004.2 and 12900 step by step:

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

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

   004.2
+  12900
---------
     2


    Add the digits in the rightmost column:
        4 + 9 + 1 = 13
        Write down 3 in the rightmost column, carry over 1 to the next column.

   004.2
+  12900
---------
     3.2


    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.

   004.2
+  12900
---------
     33.2


    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.

   004.2
+  12900
---------
     133.2

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

The final result is 133.2.

Similar Summation Operations :

Number 1	Number 2	ANSWER:	HOW TO ?
4.3	131	135.3	4.3 plus 131
4.4	136	140.4	4.4 plus 136
4.5	145	149.5	4.5 plus 145
5.7	7.8	13.5	5.7 plus 7.8
9	9.6	18.6	9 plus 9.6
1.8	8.6	10.4	1.8 plus 8.6