17.2 Plus 420.9 Addition :

Number 1	Number 2	Answer
17.2	420.9	438.1

How to calculate 17.2 plus 420.9 ?

Let's break down the addition of 017.2 and 420.9 step by step:

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

    Add the digits in the rightmost column:
        2 + 9 + 1 = 11
        Write down 1 in the rightmost column, carry over 1 to the next column.

   017.2
+  420.9
---------
     1


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

   017.2
+  420.9
---------
     8.1


    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.

   017.2
+  420.9
---------
     38.1


    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.

   017.2
+  420.9
---------
     438.1

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

The final result is 438.1.

Similar Summation Operations :

Number 1	Number 2	ANSWER:	HOW TO ?
17.3	425.9	443.2	17.3 plus 425.9
17.4	426.9	444.3	17.4 plus 426.9
17.5	433.9	451.4	17.5 plus 433.9
9.3	1.1	10.4	9.3 plus 1.1
1.5	1.5	3	1.5 plus 1.5
7.5	0.4	7.9	7.5 plus 0.4