12.1 Plus 609 Addition :

Number 1	Number 2	Answer
12.1	609	621.1

How to calculate 12.1 plus 609 ?

Let's break down the addition of 012.1 and 60900 step by step:

   012.1      <-- Start with the rightmost column
+  60900
---------

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

   012.1
+  60900
---------
     1


    Add the digits in the rightmost column:
        2 + 9 + 1 = 11
        Write down 1 in the rightmost column, carry over 1 to the next column.

   012.1
+  60900
---------
     1.1


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

   012.1
+  60900
---------
     21.1


    Add the digits in the rightmost column:
        0 + 6 + 0 = 6
        Write down 6 in the rightmost column, carry over 0 to the next column.

   012.1
+  60900
---------
     621.1

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

The final result is 621.1.

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Number 1	Number 2	ANSWER:	HOW TO ?
12.2	615	627.2	12.2 plus 615
12.3	618	630.3	12.3 plus 618
12.4	619	631.4	12.4 plus 619
6.4	1.2	7.6	6.4 plus 1.2
0.4	6.1	6.5	0.4 plus 6.1
9	7.9	16.9	9 plus 7.9