2.1 Plus 4 Addition :

Number 1	Number 2	Answer
2.1	4	6.1

How to calculate 2.1 plus 4 ?

Let's break down the addition of 2.1 and 400 step by step:

   2.1      <-- Start with the rightmost column
+  400
---------

    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.

   2.1
+  400
---------
     1


    Add the digits in the rightmost column:
        2 + 4 + 0 = 6
        Write down 6 in the rightmost column, carry over 0 to the next column.

   2.1
+  400
---------
     6.1

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

The final result is 6.1.

Similar Summation Operations :

Number 1	Number 2	ANSWER:	HOW TO ?
2.2	13	15.2	2.2 plus 13
2.3	16	18.3	2.3 plus 16
2.4	21	23.4	2.4 plus 21
8	4.7	12.7	8 plus 4.7
7.7	4	11.7	7.7 plus 4
5.2	9.4	14.6	5.2 plus 9.4