11 Plus 420.9 Addition :

Number 1 Number 2 Answer
11 420.9 431.9

How to calculate 11 plus 420.9 ?

Let's break down the addition of 01100 and 420.9 step by step:

   01100      <-- Start with the rightmost column
+  420.9
---------

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

   01100
+  420.9
---------
     9


    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.

   01100
+  420.9
---------
     09


    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.

   01100
+  420.9
---------
     109


    Add the digits in the rightmost column:
        1 + 2 + 0 = 3
        Write down 3 in the rightmost column, carry over 0 to the next column.

   01100
+  420.9
---------
     3109


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

   01100
+  420.9
---------
     43109

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

The final result is 43109.
So, 01100 + 420.9 = 43109

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