8.4 Plus 1 Addition :

Number 1	Number 2	Answer
8.4	1	9.4

How to calculate 8.4 plus 1 ?

Let's break down the addition of 8.4 and 100 step by step:

   8.4      <-- Start with the rightmost column
+  100
---------

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

   8.4
+  100
---------
     4


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

   8.4
+  100
---------
     9.4

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

The final result is 9.4.

Similar Summation Operations :

Number 1	Number 2	ANSWER:	HOW TO ?
8.5	4	12.5	8.5 plus 4
8.6	13	21.6	8.6 plus 13
8.7	16	24.7	8.7 plus 16
2.1	3.5	5.6	2.1 plus 3.5
7.8	0.2	8	7.8 plus 0.2
1.2	2.2	3.4	1.2 plus 2.2