7.5 Plus 21 Addition :

Number 1	Number 2	Answer
7.5	21	28.5

How to calculate 7.5 plus 21 ?

Let's break down the addition of 07.5 and 2100 step by step:

   07.5      <-- 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.

   07.5
+  2100
---------
     5


    Add the digits in the rightmost column:
        7 + 1 + 0 = 8
        Write down 8 in the rightmost column, carry over 0 to the next column.

   07.5
+  2100
---------
     8.5


    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.

   07.5
+  2100
---------
     28.5

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

The final result is 28.5.

Similar Summation Operations :

Number 1	Number 2	ANSWER:	HOW TO ?
7.6	24	31.6	7.6 plus 24
7.7	28	35.7	7.7 plus 28
7.8	29	36.8	7.8 plus 29
8.9	0.6	9.5	8.9 plus 0.6
5.9	1.9	7.8	5.9 plus 1.9
7.9	7	14.9	7.9 plus 7