15.9 Plus 421 Addition :

Number 1	Number 2	Answer
15.9	421	436.9

How to calculate 15.9 plus 421 ?

Let's break down the addition of 015.9 and 42100 step by step:

   015.9      <-- 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.

   015.9
+  42100
---------
     9


    Add the digits in the rightmost column:
        5 + 1 + 0 = 6
        Write down 6 in the rightmost column, carry over 0 to the next column.

   015.9
+  42100
---------
     6.9


    Add the digits in the rightmost column:
        1 + 2 + 0 = 3
        Write down 3 in the rightmost column, carry over 0 to the next column.

   015.9
+  42100
---------
     36.9


    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.

   015.9
+  42100
---------
     436.9

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

The final result is 436.9.

Similar Summation Operations :

Number 1	Number 2	ANSWER:	HOW TO ?
16	425	441	16 plus 425
16.1	429	445.1	16.1 plus 429
16.2	435	451.2	16.2 plus 435
3.5	1.9	5.4	3.5 plus 1.9
8.6	6.5	15.1	8.6 plus 6.5
5.4	4.9	10.3	5.4 plus 4.9