87.8 Plus 421 Addition :

Number 1	Number 2	Answer
87.8	421	508.8

How to calculate 87.8 plus 421 ?

Let's break down the addition of 087.8 and 42100 step by step:

   087.8      <-- Start with the rightmost column
+  42100
---------

    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.

   087.8
+  42100
---------
     8


    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.

   087.8
+  42100
---------
     8.8


    Add the digits in the rightmost column:
        8 + 2 + 1 = 10
        Write down 0 in the rightmost column, carry over 1 to the next column.

   087.8
+  42100
---------
     08.8


    Add the digits in the rightmost column:
        0 + 4 + 0 = 5
        Write down 5 in the rightmost column, carry over 0 to the next column.

   087.8
+  42100
---------
     508.8

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

The final result is 508.8.

Similar Summation Operations :

Number 1	Number 2	ANSWER:	HOW TO ?
87.9	425	512.9	87.9 plus 425
88	432	520	88 plus 432
88.1	434	522.1	88.1 plus 434
3.1	3.1	6.2	3.1 plus 3.1
7.3	0.4	7.7	7.3 plus 0.4
4.1	5	9.1	4.1 plus 5