Mathematics Crossword

2. These limits are so hard, I can hardly ________ / Function
4. You can't argue with a 90-degree angle, it's always _____!
5. When I have graph paper out, I'm usually ________ something evil
7. What an adorable angle
10. My friend said that his favorite number was pi, but I said that's just __________!
11. Making math puns is the first ____ of madness
12. sin(gerine)/cos(gerine)
14. You can't put _________ before the horse (this one's too hard)
15. What happened to the plant in math class? It grew square _____!
17. My math teacher has twelve kids; she really knows how to ________!
18. These two lines have so much in common, but sadly they'll never meet

1. There are 10 kinds of people: those who understand ______ and those who don't
2. The _________ Sequence: it's as easy as 1,1,2,3,5,8...
3. Someone needs to tell the square root of -1 to get ____
5. Pumpkin __ (this one's too easy)
6. What do you call a math teacher that spent all summer in the sun? A _______!
8. My math teacher's 83 years old, but she says she's still in her _____!
9. Some say that circles are actually useful, but I think they're _________
13. These numbers leave some students "non-plussed"
16. Numbers not divisible by 2? That's just ___