42.1 Plus 2009 Addition :

Number 1	Number 2	Answer
42.1	2009	2051.1

How to calculate 42.1 plus 2009 ?

Let's break down the addition of 0042.1 and 200900 step by step:

   0042.1      <-- Start with the rightmost column
+  200900
---------

    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.

   0042.1
+  200900
---------
     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.

   0042.1
+  200900
---------
     1.1


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

   0042.1
+  200900
---------
     51.1


    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.

   0042.1
+  200900
---------
     051.1


    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.

   0042.1
+  200900
---------
     2051.1

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

The final result is 2051.1.

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Number 1	Number 2	ANSWER:	HOW TO ?
42.2	2015	2057.2	42.2 plus 2015
42.3	2021	2063.3	42.3 plus 2021
42.4	2026	2068.4	42.4 plus 2026
8.5	6.4	14.9	8.5 plus 6.4
2.4	1.8	4.2	2.4 plus 1.8
7.7	6.9	14.6	7.7 plus 6.9