87.9 Plus 421 Addition :

Number 1	Number 2	Answer
87.9	421	508.9

How to calculate 87.9 plus 421 ?

Let's break down the addition of 087.9 and 42100 step by step:

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

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

   087.9
+  42100
---------
     9


    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.

   087.9
+  42100
---------
     8.9


    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.

   087.9
+  42100
---------
     08.9


    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.

   087.9
+  42100
---------
     508.9

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

The final result is 508.9.

Similar Summation Operations :

Number 1	Number 2	ANSWER:	HOW TO ?
88	426	514	88 plus 426
88.1	428	516.1	88.1 plus 428
88.2	431	519.2	88.2 plus 431
4.7	9.1	13.8	4.7 plus 9.1
3.5	8.1	11.6	3.5 plus 8.1
8.4	7	15.4	8.4 plus 7