31.1 Plus 1980.9 Addition :

Number 1	Number 2	Answer
31.1	1980.9	2012

How to calculate 31.1 plus 1980.9 ?

Let's break down the addition of 0031.1 and 1980.9 step by step:

   0031.1      <-- Start with the rightmost column
+  1980.9
---------

    Add the digits in the rightmost column:
        1 + 9 + 1 = 10
        Write down 0 in the rightmost column, carry over 1 to the next column.

   0031.1
+  1980.9
---------
     0


    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.

   0031.1
+  1980.9
---------
     2.0


    Add the digits in the rightmost column:
        3 + 8 + 1 = 11
        Write down 1 in the rightmost column, carry over 1 to the next column.

   0031.1
+  1980.9
---------
     12.0


    Add the digits in the rightmost column:
        0 + 9 + 1 = 10
        Write down 0 in the rightmost column, carry over 1 to the next column.

   0031.1
+  1980.9
---------
     012.0


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

   0031.1
+  1980.9
---------
     2012.0

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

The final result is 2012.0.

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Number 1	Number 2	ANSWER:	HOW TO ?
31.2	1988.9	2020.1	31.2 plus 1988.9
31.3	1992.9	2024.2	31.3 plus 1992.9
31.4	1999.9	2031.3	31.4 plus 1999.9
2.1	2.8	4.9	2.1 plus 2.8
4.9	9.4	14.3	4.9 plus 9.4
2	5.1	7.1	2 plus 5.1