20.9 Plus 1231.1 Addition :

Number 1	Number 2	Answer
20.9	1231.1	1252

How to calculate 20.9 plus 1231.1 ?

Let's break down the addition of 0020.9 and 1231.1 step by step:

   0020.9      <-- Start with the rightmost column
+  1231.1
---------

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

   0020.9
+  1231.1
---------
     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.

   0020.9
+  1231.1
---------
     2.0


    Add the digits in the rightmost column:
        2 + 3 + 0 = 5
        Write down 5 in the rightmost column, carry over 0 to the next column.

   0020.9
+  1231.1
---------
     52.0


    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.

   0020.9
+  1231.1
---------
     252.0


    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.

   0020.9
+  1231.1
---------
     1252.0

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

The final result is 1252.0.

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21	1238.1	1259.1	21 plus 1238.1
21.1	1247.1	1268.2	21.1 plus 1247.1
21.2	1255.1	1276.3	21.2 plus 1255.1
7.1	0.4	7.5	7.1 plus 0.4
8.7	2	10.7	8.7 plus 2
3.2	4.7	7.9	3.2 plus 4.7