Solve :
100-99+98-97+96-95+94-93+920

Well there is certainly a shortcut I would share but by typing it all out...doesn't seem very efficient. So unfortunately unless you have an ifea for a shortcut you have to do it the *sigh* long way. There are two long ways: Follow the proccess of adding then subtract the whole thing. Or, add first (100 + 98 + 96) and subtract the rest from the total. Unfortunately I can't do the whole problem right now, but I suggest you use a calculator first and then show your work for the method you choose. The reason for a calculator is to check your answer. But do show your work or whoever teaches you might get a bit angry. :D Good luck, sorry if you were expecting an answer but here is an idea.

It would be the second one because it passes the vertical line test

Ithink the answer would be knew