21.1 Plus 408 Addition :

Number 1	Number 2	Answer
21.1	408	429.1

How to calculate 21.1 plus 408 ?

Let's break down the addition of 021.1 and 40800 step by step:

   021.1      <-- Start with the rightmost column
+  40800
---------

    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.

   021.1
+  40800
---------
     1


    Add the digits in the rightmost column:
        1 + 8 + 0 = 9
        Write down 9 in the rightmost column, carry over 0 to the next column.

   021.1
+  40800
---------
     9.1


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

   021.1
+  40800
---------
     29.1


    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.

   021.1
+  40800
---------
     429.1

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

The final result is 429.1.

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Number 1	Number 2	ANSWER:	HOW TO ?
21.2	417	438.2	21.2 plus 417
21.3	426	447.3	21.3 plus 426
21.4	433	454.4	21.4 plus 433
5.9	1.3	7.2	5.9 plus 1.3
5.1	0.8	5.9	5.1 plus 0.8
8.1	3	11.1	8.1 plus 3