100.8 Plus 421 Addition :

Number 1	Number 2	Answer
100.8	421	521.8

How to calculate 100.8 plus 421 ?

Let's break down the addition of 100.8 and 42100 step by step:

   100.8      <-- 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.

   100.8
+  42100
---------
     8


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

   100.8
+  42100
---------
     1.8


    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.

   100.8
+  42100
---------
     21.8


    Add the digits in the rightmost column:
        1 + 4 + 0 = 5
        Write down 5 in the rightmost column, carry over 0 to the next column.

   100.8
+  42100
---------
     521.8

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

The final result is 521.8.

Similar Summation Operations :

Number 1	Number 2	ANSWER:	HOW TO ?
100.9	424	524.9	100.9 plus 424
101	425	526	101 plus 425
101.1	434	535.1	101.1 plus 434
3.8	4.6	8.4	3.8 plus 4.6
1.5	0.4	1.9	1.5 plus 0.4
6.3	6.8	13.1	6.3 plus 6.8