8.7 Plus 420 Addition :

Number 1	Number 2	Answer
8.7	420	428.7

How to calculate 8.7 plus 420 ?

Let's break down the addition of 008.7 and 42000 step by step:

   008.7      <-- Start with the rightmost column
+  42000
---------

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

   008.7
+  42000
---------
     7


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

   008.7
+  42000
---------
     8.7


    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
+  42000
---------
     28.7


    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
+  42000
---------
     428.7

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

The final result is 428.7.

Similar Summation Operations :

Number 1	Number 2	ANSWER:	HOW TO ?
8.8	426	434.8	8.8 plus 426
8.9	432	440.9	8.9 plus 432
9	433	442	9 plus 433
4.7	9.9	14.6	4.7 plus 9.9
7.1	9.8	16.9	7.1 plus 9.8
5.7	0.3	6	5.7 plus 0.3