6.9 Plus 21 Addition :

Number 1	Number 2	Answer
6.9	21	27.9

How to calculate 6.9 plus 21 ?

Let's break down the addition of 06.9 and 2100 step by step:

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

    Add the digits in the rightmost column:
        9 + 0 + 0 = 9
        Write down 9 in the rightmost column, carry over 0 to the next column.

   06.9
+  2100
---------
     9


    Add the digits in the rightmost column:
        6 + 1 + 0 = 7
        Write down 7 in the rightmost column, carry over 0 to the next column.

   06.9
+  2100
---------
     7.9


    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.

   06.9
+  2100
---------
     27.9

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

The final result is 27.9.

Similar Summation Operations :

Number 1	Number 2	ANSWER:	HOW TO ?
7	29	36	7 plus 29
7.1	35	42.1	7.1 plus 35
7.2	43	50.2	7.2 plus 43
4.4	2.7	7.1	4.4 plus 2.7
4.1	1.4	5.5	4.1 plus 1.4
1	3.1	4.1	1 plus 3.1