8.7 Plus 420.9 Addition :

Number 1	Number 2	Answer
8.7	420.9	429.6

How to calculate 8.7 plus 420.9 ?

Let's break down the addition of 008.7 and 420.9 step by step:

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

    Add the digits in the rightmost column:
        7 + 9 + 1 = 16
        Write down 6 in the rightmost column, carry over 1 to the next column.

   008.7
+  420.9
---------
     6


    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.

   008.7
+  420.9
---------
     9.6


    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.

   008.7
+  420.9
---------
     29.6


    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.

   008.7
+  420.9
---------
     429.6

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

The final result is 429.6.

Similar Summation Operations :

Number 1	Number 2	ANSWER:	HOW TO ?
8.8	423.9	432.7	8.8 plus 423.9
8.9	430.9	439.8	8.9 plus 430.9
9	436.9	445.9	9 plus 436.9
8	2.1	10.1	8 plus 2.1
0.7	0.5	1.2	0.7 plus 0.5
4.6	2.1	6.7	4.6 plus 2.1