80.4 Plus 21 Addition :

Number 1	Number 2	Answer
80.4	21	101.4

How to calculate 80.4 plus 21 ?

Let's break down the addition of 80.4 and 2100 step by step:

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

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

   80.4
+  2100
---------
     4


    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.

   80.4
+  2100
---------
     1.4


    Add the digits in the rightmost column:
        8 + 2 + 1 = 10
        Write down 0 in the rightmost column, carry over 1 to the next column.

   80.4
+  2100
---------
     01.4

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

The final result is 101.4.

Similar Summation Operations :

Number 1	Number 2	ANSWER:	HOW TO ?
80.5	23	103.5	80.5 plus 23
80.6	24	104.6	80.6 plus 24
80.7	28	108.7	80.7 plus 28
6.9	4.3	11.2	6.9 plus 4.3
4.9	3.9	8.8	4.9 plus 3.9
1	7.4	8.4	1 plus 7.4