Could you repost the last symbol or say what it is?

It means less or equal to 5

It means less or equal to 5

I'm not sure how to go about it with strict calculations, but with guesswork, we can get them all.

-1 and -5 and vice versa
1 and -5 and vice versa
-1 and 5 and vice versa
1 and 5 and vice versa

That's it :)

EDIT: Now, you need to look for those pairs which form less than 5.

Which are (1|1), (1|2), (2|2), (1|3), (1|4) pairs with plus and minus signs.

This makes some more pairs to add.

What about (1,4),(1,3),(1,2),(1,1),(2,2) with all the -/+ and vise versas? I mean the only rules are that when multiplied together the absolute value has to be greater than zero but less than or equal to 5 right? And that is just whole numbers. In reality there is an infinite number of pairs that could fit. Am I missing something?

Yes, I'm the one who missed something. After a good night of sleep, I realised my mistake but you had already posted before I was able to come online :o