18 Plus 402.4 Addition :

Number 1	Number 2	Answer
18	402.4	420.4

How to calculate 18 plus 402.4 ?

Let's break down the addition of 01800 and 402.4 step by step:

   01800      <-- Start with the rightmost column
+  402.4
---------

    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.

   01800
+  402.4
---------
     4


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

   01800
+  402.4
---------
     04


    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.

   01800
+  402.4
---------
     004


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

   01800
+  402.4
---------
     2004


    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.

   01800
+  402.4
---------
     42004

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

The final result is 42004.

Similar Summation Operations :

Number 1	Number 2	ANSWER:	HOW TO ?
18.1	404.4	422.5	18.1 plus 404.4
18.2	405.4	423.6	18.2 plus 405.4
18.3	407.4	425.7	18.3 plus 407.4
0.4	8.2	8.6	0.4 plus 8.2
9.3	8	17.3	9.3 plus 8
9.2	7.1	16.3	9.2 plus 7.1