What two numbers add up to 328?

There are infinite combinations of two numbers that add up to 328. Here are some examples using negative numbers:

-1 + 329 = 328
-2 + 330 = 328
-3 + 331 = 328
...

Here are some examples using two fractions that will add up to 328:

328/2 + 328/2 = 328
656/3 + 328/3 = 328
984/4 + 328/4 = 328
...

And here are some examples using two decimal numbers that will add up to 328:

1.25 + 326.75 = 328
2.50 + 325.5 = 328
3.75 + 324.25 = 328
...

As you can see from the lists above, it can go on forever. However, when answering "What two numbers add up to 328?", 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 328. (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 328?" has 164 answers:

1 + 327 = 328
2 + 326 = 328
3 + 325 = 328
.
.
162 + 166 = 328
163 + 165 = 328
164 + 164 = 328

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

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