10.2 Plus 21 Addition :

Number 1	Number 2	Answer
10.2	21	31.2

How to calculate 10.2 plus 21 ?

Let's break down the addition of 10.2 and 2100 step by step:

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

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

   10.2
+  2100
---------
     2


    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.

   10.2
+  2100
---------
     1.2


    Add the digits in the rightmost column:
        1 + 2 + 0 = 3
        Write down 3 in the rightmost column, carry over 0 to the next column.

   10.2
+  2100
---------
     31.2

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

The final result is 31.2.

Similar Summation Operations :

Number 1	Number 2	ANSWER:	HOW TO ?
10.3	28	38.3	10.3 plus 28
10.4	36	46.4	10.4 plus 36
10.5	38	48.5	10.5 plus 38
4.2	9	13.2	4.2 plus 9
6.6	4.4	11	6.6 plus 4.4
1.1	5.8	6.9	1.1 plus 5.8