2.1 Plus 40 Addition :

Number 1	Number 2	Answer
2.1	40	42.1

How to calculate 2.1 plus 40 ?

Let's break down the addition of 02.1 and 4000 step by step:

   02.1      <-- Start with the rightmost column
+  4000
---------

    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.

   02.1
+  4000
---------
     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.

   02.1
+  4000
---------
     2.1


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

   02.1
+  4000
---------
     42.1

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

The final result is 42.1.

Similar Summation Operations :

Number 1	Number 2	ANSWER:	HOW TO ?
2.2	43	45.2	2.2 plus 43
2.3	49	51.3	2.3 plus 49
2.4	50	52.4	2.4 plus 50
5.9	1.1	7	5.9 plus 1.1
9.4	5.6	15	9.4 plus 5.6
1.5	0.8	2.3	1.5 plus 0.8