What two numbers add up to 801?

There are infinite combinations of two numbers that add up to 801. Here are some examples using negative numbers:

-1 + 802 = 801
-2 + 803 = 801
-3 + 804 = 801
...

Here are some examples using two fractions that will add up to 801:

801/2 + 801/2 = 801
1602/3 + 801/3 = 801
2403/4 + 801/4 = 801
...

And here are some examples using two decimal numbers that will add up to 801:

1.25 + 799.75 = 801
2.50 + 798.5 = 801
3.75 + 797.25 = 801
...

As you can see from the lists above, it can go on forever. However, when answering "What two numbers add up to 801?", 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 801. (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 801?" has 400 answers:

1 + 800 = 801
2 + 799 = 801
3 + 798 = 801
.
.
398 + 403 = 801
399 + 402 = 801
400 + 401 = 801

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

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What two numbers add up to 802?
Here is the next problem on our list that we answered and explained in a similar fashion.