8.4 Plus 121 Addition :

Number 1	Number 2	Answer
8.4	121	129.4

How to calculate 8.4 plus 121 ?

Let's break down the addition of 008.4 and 12100 step by step:

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

    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.

   008.4
+  12100
---------
     4


    Add the digits in the rightmost column:
        8 + 1 + 0 = 9
        Write down 9 in the rightmost column, carry over 0 to the next column.

   008.4
+  12100
---------
     9.4


    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.

   008.4
+  12100
---------
     29.4


    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.

   008.4
+  12100
---------
     129.4

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

The final result is 129.4.

Similar Summation Operations :

Number 1	Number 2	ANSWER:	HOW TO ?
8.5	127	135.5	8.5 plus 127
8.6	136	144.6	8.6 plus 136
8.7	137	145.7	8.7 plus 137
1	3	4	1 plus 3
3.4	9.6	13	3.4 plus 9.6
6.5	3.9	10.4	6.5 plus 3.9