21.1 Plus 21 Addition :

Number 1	Number 2	Answer
21.1	21	42.1

How to calculate 21.1 plus 21 ?

Let's break down the addition of 21.1 and 2100 step by step:

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

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

   21.1
+  2100
---------
     1


    Add the digits in the rightmost column:
        1 + 1 + 0 = 2
        Write down 2 in the rightmost column, carry over 0 to the next column.

   21.1
+  2100
---------
     2.1


    Add the digits in the rightmost column:
        2 + 2 + 0 = 4
        Write down 4 in the rightmost column, carry over 0 to the next column.

   21.1
+  2100
---------
     42.1

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

The final result is 42.1.

Similar Summation Operations :

Number 1	Number 2	ANSWER:	HOW TO ?
21.2	30	51.2	21.2 plus 30
21.3	34	55.3	21.3 plus 34
21.4	38	59.4	21.4 plus 38
3	5.7	8.7	3 plus 5.7
3	9.9	12.9	3 plus 9.9
4.9	2.6	7.5	4.9 plus 2.6