What two numbers add up to 2790?

There are infinite combinations of two numbers that add up to 2790. Here are some examples using negative numbers:

-1 + 2791 = 2790
-2 + 2792 = 2790
-3 + 2793 = 2790
...

Here are some examples using two fractions that will add up to 2790:

2790/2 + 2790/2 = 2790
5580/3 + 2790/3 = 2790
8370/4 + 2790/4 = 2790
...

And here are some examples using two decimal numbers that will add up to 2790:

1.25 + 2788.75 = 2790
2.50 + 2787.5 = 2790
3.75 + 2786.25 = 2790
...

As you can see from the lists above, it can go on forever. However, when answering "What two numbers add up to 2790?", 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 2790. (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 2790?" has 1395 answers:

1 + 2789 = 2790
2 + 2788 = 2790
3 + 2787 = 2790
.
.
1393 + 1397 = 2790
1394 + 1396 = 2790
1395 + 1395 = 2790

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 2790 by 2 and then rounded down to the nearest whole number if necessary.

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