4 Plus 125.9 Addition :

Number 1	Number 2	Answer
4	125.9	129.9

How to calculate 4 plus 125.9 ?

Let's break down the addition of 00400 and 125.9 step by step:

   00400      <-- Start with the rightmost column
+  125.9
---------

    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.

   00400
+  125.9
---------
     9


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

   00400
+  125.9
---------
     09


    Add the digits in the rightmost column:
        4 + 5 + 0 = 9
        Write down 9 in the rightmost column, carry over 0 to the next column.

   00400
+  125.9
---------
     909


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

   00400
+  125.9
---------
     2909


    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.

   00400
+  125.9
---------
     12909

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

The final result is 12909.

Similar Summation Operations :

Number 1	Number 2	ANSWER:	HOW TO ?
4.1	134.9	139	4.1 plus 134.9
4.2	135.9	140.1	4.2 plus 135.9
4.3	138.9	143.2	4.3 plus 138.9
1.2	5.3	6.5	1.2 plus 5.3
0.2	1.5	1.7	0.2 plus 1.5
4.4	7.2	11.6	4.4 plus 7.2