8.1 Plus 4.2 Addition :

Number 1	Number 2	Answer
8.1	4.2	12.3

How to calculate 8.1 plus 4.2 ?

Let's break down the addition of 8.1 and 4.2 step by step:

   8.1      <-- Start with the rightmost column
+  4.2
---------

    Add the digits in the rightmost column:
        1 + 2 + 0 = 3
        Write down 3 in the rightmost column, carry over 0 to the next column.

   8.1
+  4.2
---------
     3


    Add the digits in the rightmost column:
        8 + 4 + 1 = 12
        Write down 2 in the rightmost column, carry over 1 to the next column.

   8.1
+  4.2
---------
     2.3

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

The final result is 12.3.

Similar Summation Operations :

Number 1	Number 2	ANSWER:	HOW TO ?
8.2	8.2	16.4	8.2 plus 8.2
8.3	14.2	22.5	8.3 plus 14.2
8.4	22.2	30.6	8.4 plus 22.2
4	5.6	9.6	4 plus 5.6
2.5	9.6	12.1	2.5 plus 9.6
8	5.1	13.1	8 plus 5.1