20.4 Plus 400.5 Addition :

Number 1	Number 2	Answer
20.4	400.5	420.9

How to calculate 20.4 plus 400.5 ?

Let's break down the addition of 020.4 and 400.5 step by step:

   020.4      <-- Start with the rightmost column
+  400.5
---------

    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.

   020.4
+  400.5
---------
     9


    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.

   020.4
+  400.5
---------
     0.9


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

   020.4
+  400.5
---------
     20.9


    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.

   020.4
+  400.5
---------
     420.9

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

The final result is 420.9.

Similar Summation Operations :

Number 1	Number 2	ANSWER:	HOW TO ?
20.5	403.5	424	20.5 plus 403.5
20.6	409.5	430.1	20.6 plus 409.5
20.7	413.5	434.2	20.7 plus 413.5
8.5	3.8	12.3	8.5 plus 3.8
0.3	7.9	8.2	0.3 plus 7.9
7.8	9.2	17	7.8 plus 9.2