4.2 Plus 121 Addition :

Number 1	Number 2	Answer
4.2	121	125.2

How to calculate 4.2 plus 121 ?

Let's break down the addition of 004.2 and 12100 step by step:

   004.2      <-- Start with the rightmost column
+  12100
---------

    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
+  12100
---------
     2


    Add the digits in the rightmost column:
        4 + 1 + 0 = 5
        Write down 5 in the rightmost column, carry over 0 to the next column.

   004.2
+  12100
---------
     5.2


    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.

   004.2
+  12100
---------
     25.2


    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
+  12100
---------
     125.2

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

The final result is 125.2.

Similar Summation Operations :

Number 1	Number 2	ANSWER:	HOW TO ?
4.3	123	127.3	4.3 plus 123
4.4	129	133.4	4.4 plus 129
4.5	132	136.5	4.5 plus 132
9.2	3.8	13	9.2 plus 3.8
5.7	1.7	7.4	5.7 plus 1.7
6.4	2.8	9.2	6.4 plus 2.8