What two numbers add up to 9908?

There are infinite combinations of two numbers that add up to 9908. Here are some examples using negative numbers:

-1 + 9909 = 9908
-2 + 9910 = 9908
-3 + 9911 = 9908
...

Here are some examples using two fractions that will add up to 9908:

9908/2 + 9908/2 = 9908
19816/3 + 9908/3 = 9908
29724/4 + 9908/4 = 9908
...

And here are some examples using two decimal numbers that will add up to 9908:

1.25 + 9906.75 = 9908
2.50 + 9905.5 = 9908
3.75 + 9904.25 = 9908
...

As you can see from the lists above, it can go on forever. However, when answering "What two numbers add up to 9908?", it may be more interesting to set some criteria to limit the result. We will set the follow criteria:

1) Only positive whole numbers can add up to 9908. (0 is not a positive or negative number and should not be included.)

2) Since a+b=29 is the same as b+a=29, we should only list it once.

Now, the answer to "What two numbers add up to 9908?" has 4954 answers:

1 + 9907 = 9908
2 + 9906 = 9908
3 + 9905 = 9908
.
.
4952 + 4956 = 9908
4953 + 4955 = 9908
4954 + 4954 = 9908

We have truncated the list above due to space, but you may be interested to know that we calculated the number of answers by dividing 9908 by 2 and then rounded down to the nearest whole number if necessary.

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