30.4 Plus 21 Addition :

Number 1	Number 2	Answer
30.4	21	51.4

How to calculate 30.4 plus 21 ?

Let's break down the addition of 30.4 and 2100 step by step:

   30.4      <-- 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.

   30.4
+  2100
---------
     4


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

   30.4
+  2100
---------
     1.4


    Add the digits in the rightmost column:
        3 + 2 + 0 = 5
        Write down 5 in the rightmost column, carry over 0 to the next column.

   30.4
+  2100
---------
     51.4

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

The final result is 51.4.

Similar Summation Operations :

Number 1	Number 2	ANSWER:	HOW TO ?
30.5	30	60.5	30.5 plus 30
30.6	36	66.6	30.6 plus 36
30.7	40	70.7	30.7 plus 40
7	2.8	9.8	7 plus 2.8
2.1	0.5	2.6	2.1 plus 0.5
8.6	4.5	13.1	8.6 plus 4.5