31.1 Plus 1980 Addition :

Number 1	Number 2	Answer
31.1	1980	2011.1

How to calculate 31.1 plus 1980 ?

Let's break down the addition of 0031.1 and 198000 step by step:

   0031.1      <-- Start with the rightmost column
+  198000
---------

    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.

   0031.1
+  198000
---------
     1


    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.

   0031.1
+  198000
---------
     1.1


    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
+  198000
---------
     11.1


    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
+  198000
---------
     011.1


    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
+  198000
---------
     2011.1

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

The final result is 2011.1.

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Number 1	Number 2	ANSWER:	HOW TO ?
31.2	1987	2018.2	31.2 plus 1987
31.3	1996	2027.3	31.3 plus 1996
31.4	1998	2029.4	31.4 plus 1998
6.5	8.6	15.1	6.5 plus 8.6
8.3	3.4	11.7	8.3 plus 3.4
1	0.4	1.4	1 plus 0.4