21.5 Plus 428.4 Addition :

Number 1	Number 2	Answer
21.5	428.4	449.9

How to calculate 21.5 plus 428.4 ?

Let's break down the addition of 021.5 and 428.4 step by step:

   021.5      <-- Start with the rightmost column
+  428.4
---------

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

   021.5
+  428.4
---------
     9


    Add the digits in the rightmost column:
        1 + 8 + 0 = 9
        Write down 9 in the rightmost column, carry over 0 to the next column.

   021.5
+  428.4
---------
     9.9


    Add the digits in the rightmost column:
        2 + 2 + 0 = 4
        Write down 4 in the rightmost column, carry over 0 to the next column.

   021.5
+  428.4
---------
     49.9


    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.

   021.5
+  428.4
---------
     449.9

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

The final result is 449.9.

Similar Summation Operations :

Number 1	Number 2	ANSWER:	HOW TO ?
21.6	436.4	458	21.6 plus 436.4
21.7	445.4	467.1	21.7 plus 445.4
21.8	452.4	474.2	21.8 plus 452.4
4.2	5	9.2	4.2 plus 5
1	2.7	3.7	1 plus 2.7
6.4	5.9	12.3	6.4 plus 5.9