There are plenty of good math jokes under this category that will make you laugh.
- Henry had 50 cookies. He ate 20 of them. What does he have now? - Stomachache.
- Why did Pi get its driver's license revoked? - Because it didn't know when to stop.
- What did the acorn say when it grew up? - Ge-om-e-try! (Gee, I'm a tree!).
- Bob has 39 candy bars. He ate 29. What does he have now? - Diabetes.
- What's the official animal of Pi day? - The Pi-thon!
- What do you get if you divide the circumference of a jack-o-lantern by its diameter? - Pumpkin pi.
- What do you call an empty parrot cage? - A polygon. (A polly gone.)
- Why couldn't the number four get into the nightclub? - Because it was too square.