8.9 Plus 420.5 Addition :

Number 1	Number 2	Answer
8.9	420.5	429.4

How to calculate 8.9 plus 420.5 ?

Let's break down the addition of 008.9 and 420.5 step by step:

   008.9      <-- Start with the rightmost column
+  420.5
---------

    Add the digits in the rightmost column:
        9 + 5 + 1 = 14
        Write down 4 in the rightmost column, carry over 1 to the next column.

   008.9
+  420.5
---------
     4


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

   008.9
+  420.5
---------
     9.4


    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.

   008.9
+  420.5
---------
     29.4


    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.

   008.9
+  420.5
---------
     429.4

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

The final result is 429.4.

Similar Summation Operations :

Number 1	Number 2	ANSWER:	HOW TO ?
9	428.5	437.5	9 plus 428.5
9.1	430.5	439.6	9.1 plus 430.5
9.2	432.5	441.7	9.2 plus 432.5
3.7	3.2	6.9	3.7 plus 3.2
1.5	7.4	8.9	1.5 plus 7.4
1.7	3	4.7	1.7 plus 3