0.8 Plus 21 Addition :

Number 1	Number 2	Answer
0.8	21	21.8

How to calculate 0.8 plus 21 ?

Let's break down the addition of 00.8 and 2100 step by step:

   00.8      <-- 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.

   00.8
+  2100
---------
     8


    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.

   00.8
+  2100
---------
     1.8


    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.

   00.8
+  2100
---------
     21.8

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

The final result is 21.8.

Similar Summation Operations :

Number 1	Number 2	ANSWER:	HOW TO ?
0.9	23	23.9	0.9 plus 23
1	26	27	1 plus 26
1.1	27	28.1	1.1 plus 27
2.9	7.3	10.2	2.9 plus 7.3
4.1	7.7	11.8	4.1 plus 7.7
5.8	5.5	11.3	5.8 plus 5.5