What two numbers add up to 2503?

There are infinite combinations of two numbers that add up to 2503. Here are some examples using negative numbers:

-1 + 2504 = 2503
-2 + 2505 = 2503
-3 + 2506 = 2503
...

Here are some examples using two fractions that will add up to 2503:

2503/2 + 2503/2 = 2503
5006/3 + 2503/3 = 2503
7509/4 + 2503/4 = 2503
...

And here are some examples using two decimal numbers that will add up to 2503:

1.25 + 2501.75 = 2503
2.50 + 2500.5 = 2503
3.75 + 2499.25 = 2503
...

As you can see from the lists above, it can go on forever. However, when answering "What two numbers add up to 2503?", 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 2503. (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 2503?" has 1251 answers:

1 + 2502 = 2503
2 + 2501 = 2503
3 + 2500 = 2503
.
.
1249 + 1254 = 2503
1250 + 1253 = 2503
1251 + 1252 = 2503

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 2503 by 2 and then rounded down to the nearest whole number if necessary.

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