21.7 Plus 638.1 Addition :

Number 1	Number 2	Answer
21.7	638.1	659.8

How to calculate 21.7 plus 638.1 ?

Let's break down the addition of 021.7 and 638.1 step by step:

   021.7      <-- Start with the rightmost column
+  638.1
---------

    Add the digits in the rightmost column:
        7 + 1 + 0 = 8
        Write down 8 in the rightmost column, carry over 0 to the next column.

   021.7
+  638.1
---------
     8


    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.

   021.7
+  638.1
---------
     9.8


    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.

   021.7
+  638.1
---------
     59.8


    Add the digits in the rightmost column:
        0 + 6 + 0 = 6
        Write down 6 in the rightmost column, carry over 0 to the next column.

   021.7
+  638.1
---------
     659.8

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

The final result is 659.8.

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Number 1	Number 2	ANSWER:	HOW TO ?
21.8	645.1	666.9	21.8 plus 645.1
21.9	652.1	674	21.9 plus 652.1
22	656.1	678.1	22 plus 656.1
6.6	4.6	11.2	6.6 plus 4.6
5.1	3.7	8.8	5.1 plus 3.7
7.9	4.9	12.8	7.9 plus 4.9