3.5 Plus 21 Addition :

Number 1	Number 2	Answer
3.5	21	24.5

How to calculate 3.5 plus 21 ?

Let's break down the addition of 03.5 and 2100 step by step:

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

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

   03.5
+  2100
---------
     5


    Add the digits in the rightmost column:
        3 + 1 + 0 = 4
        Write down 4 in the rightmost column, carry over 0 to the next column.

   03.5
+  2100
---------
     4.5


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

   03.5
+  2100
---------
     24.5

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

The final result is 24.5.

Similar Summation Operations :

Number 1	Number 2	ANSWER:	HOW TO ?
3.6	28	31.6	3.6 plus 28
3.7	29	32.7	3.7 plus 29
3.8	36	39.8	3.8 plus 36
4	0.3	4.3	4 plus 0.3
9	0.9	9.9	9 plus 0.9
0.5	2.9	3.4	0.5 plus 2.9