21.1 Plus 4 Addition :

Number 1	Number 2	Answer
21.1	4	25.1

How to calculate 21.1 plus 4 ?

Let's break down the addition of 21.1 and 0400 step by step:

   21.1      <-- Start with the rightmost column
+  0400
---------

    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
+  0400
---------
     1


    Add the digits in the rightmost column:
        1 + 4 + 0 = 5
        Write down 5 in the rightmost column, carry over 0 to the next column.

   21.1
+  0400
---------
     5.1


    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.

   21.1
+  0400
---------
     25.1

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

The final result is 25.1.

Similar Summation Operations :

Number 1	Number 2	ANSWER:	HOW TO ?
21.2	9	30.2	21.2 plus 9
21.3	14	35.3	21.3 plus 14
21.4	20	41.4	21.4 plus 20
4.5	6.2	10.7	4.5 plus 6.2
0.4	5.6	6	0.4 plus 5.6
7.9	5.6	13.5	7.9 plus 5.6