2.8 Plus 21 Addition :

Number 1	Number 2	Answer
2.8	21	23.8

How to calculate 2.8 plus 21 ?

Let's break down the addition of 02.8 and 2100 step by step:

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

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

   02.8
+  2100
---------
     8


    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.

   02.8
+  2100
---------
     3.8


    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.

   02.8
+  2100
---------
     23.8

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

The final result is 23.8.

Similar Summation Operations :

Number 1	Number 2	ANSWER:	HOW TO ?
2.9	23	25.9	2.9 plus 23
3	32	35	3 plus 32
3.1	35	38.1	3.1 plus 35
3.4	0.9	4.3	3.4 plus 0.9
1.2	7.8	9	1.2 plus 7.8
6.8	9.7	16.5	6.8 plus 9.7