15.5 Plus 420.9 Addition :

Number 1	Number 2	Answer
15.5	420.9	436.4

How to calculate 15.5 plus 420.9 ?

Let's break down the addition of 015.5 and 420.9 step by step:

   015.5      <-- Start with the rightmost column
+  420.9
---------

    Add the digits in the rightmost column:
        5 + 9 + 1 = 14
        Write down 4 in the rightmost column, carry over 1 to the next column.

   015.5
+  420.9
---------
     4


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

   015.5
+  420.9
---------
     6.4


    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.

   015.5
+  420.9
---------
     36.4


    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.

   015.5
+  420.9
---------
     436.4

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

The final result is 436.4.

Similar Summation Operations :

Number 1	Number 2	ANSWER:	HOW TO ?
15.6	423.9	439.5	15.6 plus 423.9
15.7	427.9	443.6	15.7 plus 427.9
15.8	429.9	445.7	15.8 plus 429.9
5	8.6	13.6	5 plus 8.6
3.5	3.2	6.7	3.5 plus 3.2
2.4	2.6	5	2.4 plus 2.6