42.4 Plus 21 Addition :

Number 1	Number 2	Answer
42.4	21	63.4

How to calculate 42.4 plus 21 ?

Let's break down the addition of 42.4 and 2100 step by step:

   42.4      <-- Start with the rightmost column
+  2100
---------

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

   42.4
+  2100
---------
     4


    Add the digits in the rightmost column:
        2 + 1 + 0 = 3
        Write down 3 in the rightmost column, carry over 0 to the next column.

   42.4
+  2100
---------
     3.4


    Add the digits in the rightmost column:
        4 + 2 + 0 = 6
        Write down 6 in the rightmost column, carry over 0 to the next column.

   42.4
+  2100
---------
     63.4

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

The final result is 63.4.

Similar Summation Operations :

Number 1	Number 2	ANSWER:	HOW TO ?
42.5	23	65.5	42.5 plus 23
42.6	30	72.6	42.6 plus 30
42.7	38	80.7	42.7 plus 38
9.9	8.3	18.2	9.9 plus 8.3
6.4	6.9	13.3	6.4 plus 6.9
3.3	3.3	6.6	3.3 plus 3.3