18.4 Plus 420.5 Addition :

Number 1	Number 2	Answer
18.4	420.5	438.9

How to calculate 18.4 plus 420.5 ?

Let's break down the addition of 018.4 and 420.5 step by step:

   018.4      <-- Start with the rightmost column
+  420.5
---------

    Add the digits in the rightmost column:
        4 + 5 + 0 = 9
        Write down 9 in the rightmost column, carry over 0 to the next column.

   018.4
+  420.5
---------
     9


    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.

   018.4
+  420.5
---------
     8.9


    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.

   018.4
+  420.5
---------
     38.9


    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.

   018.4
+  420.5
---------
     438.9

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

The final result is 438.9.

Similar Summation Operations :

Number 1	Number 2	ANSWER:	HOW TO ?
18.5	428.5	447	18.5 plus 428.5
18.6	433.5	452.1	18.6 plus 433.5
18.7	440.5	459.2	18.7 plus 440.5
7.3	9.8	17.1	7.3 plus 9.8
3.3	9.5	12.8	3.3 plus 9.5
6	1.2	7.2	6 plus 1.2