3.1 Plus 7.8 Addition :

Number 1	Number 2	Answer
3.1	7.8	10.9

How to calculate 3.1 plus 7.8 ?

Let's break down the addition of 3.1 and 7.8 step by step:

   3.1      <-- Start with the rightmost column
+  7.8
---------

    Add the digits in the rightmost column:
        1 + 8 + 0 = 9
        Write down 9 in the rightmost column, carry over 0 to the next column.

   3.1
+  7.8
---------
     9


    Add the digits in the rightmost column:
        3 + 7 + 1 = 10
        Write down 0 in the rightmost column, carry over 1 to the next column.

   3.1
+  7.8
---------
     0.9

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

The final result is 10.9.

Similar Summation Operations :

Number 1	Number 2	ANSWER:	HOW TO ?
3.2	11.8	15	3.2 plus 11.8
3.3	15.8	19.1	3.3 plus 15.8
3.4	24.8	28.2	3.4 plus 24.8
5.5	4.7	10.2	5.5 plus 4.7
1.8	0.6	2.4	1.8 plus 0.6
1.8	1	2.8	1.8 plus 1