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Pi Day Jokes…

  1. Knock knock?…Who is there?…Boo… Boo Who?… Don’t cry! We have the best Pi Day jokes.
  2. Pi Day…. Come to think of it, we wouldn’t mind celebrating forever.
  3. One day I told a psychiatrist that pi wasn’t real… She said I was being irrational. (Psychology Jokes)
  4. Pi Day Pickup Line: Are you 3.14?… Because you’re infinitely perfect.
  5. The local pie shop almost never closes… It’s 22/7. (Pie Jokes)
  6. I can see quite a number of these Pi jokes coming from a mile away… Although I can’t seem to catch their ending no matter how I try.
  7. Simple as 3.141592…
  8. If today is really Pi Day… it would never end.
  9. What did pi say when someone asked if it could explain what Pi Day was again?… “I don’t want to repeat myself.”
  10. You know what they say about Pi Day… It really is an irrational holiday. (March Jokes)
  11. Never talk to pi… He’ll go on forever.
  12. Why did pi fail its driving test?… Because it didn’t know when to stop. (Car Jokes)
  13. On a scale from 1-10 my pain seems to always be Pi… It may be a low level but it goes on forever. (Doctor Jokes)
  14. What language should you speak on Pi day?… Sine language!n forever. (Doctor Jokes)
  15. Mathematician: Pi r squared. Baker: No! Pies are round, cakes are square! (Pie Jokes & Geometry Jokes)
  16. What’s the best way to serve pi?… A la mode. Anything else is just mean. (Ice Cream Jokes)
  17. What is 1/2 of pi?… 1.57. (Pie Jokes)
  18. How many stars did the movie critic give to Life of Pi?… 3.14159 stars. (Movie Jokes)
  19. What do you call someone who is fluent in 3 languages and marginally conversant in 4th?… Pi-Lingual. (World Geography Jokes)
  20. I started memorizing the digits of pi… Then I realized it was irrational.
  21. A statistics professor and a math professor worked together on a cookbook… They called it “Pi A La Mode.” (Pie Jokes)
  22. How many pastry chefs does it take to make a Pi Day pie?… 3.14. (Pie Jokes)
  23. 3.14% of Sailors are PI rates! (Pirate Jokes for Kids)
  24. After years and years of rumors, pi finally announced that it was going to write a book about its own life… This was going to be its auto-pi-ography! (Book Jokes)
  25. What do you call 8 x 3.14?… Octopi. (Octopus Jokes)
  26. The roundest knight at King Arthur’s was Sir Cumference… He ate too much Pi! (Knight Jokes)
  27. Apologies… but most of these pi jokes are about being irrational.
  28. The worst thing about getting hit in the face with pi… is that it never ends. (Pie Jokes)
  29. What is the official tree of Pi Day?… A Pi-ne tree. (Tree Jokes)
  30. What did the mathematicians prepare for dinner on March 14th?… Chicken Pot Pi! (Chicken Jokes)
  31. What is the official animal of Pi Day?… the PI – thon! (Snake Jokes)
  32. Albert Einstein‘s birthday was on Pi Day — March 14, 1879. Perhaps he served pie for his birthday instead of cake. (Cake Jokes / Birthday Jokes / (Pie Jokes)
  33. What is the official mascot of of Pi Day?… the PI – rate! (Pirate Jokes for Kids)
  34. Where should you do your Pi Day math homework?… On a multiplication table, in Times Square.
  35. What’s the best way to visualize infinity?… With a pi chart.
  36. Customer: “Waiter, will my pizza be long?” Waiter: “No sir, it will be round!” (Pizza Jokes & Geometry Jokes)
  37. How are mathematicians like the air force?… They both use pi-lots.  (Air Force Jokes)
  38. In Alaska, where it gets very cold, pi is only 3.00. As you know, everything shrinks in the cold. They call it Eskimo pi. (Alaska Jokes)
  39. Why isn’t pi on Twitter?… Because even 280 characters isn’t enough to express itself.
  40. What is a math teacher’s favorite dessert?… Pi. (Dessert Jokes / Math Jokes / Back to School Jokes for Kids)
  41. What do you call a young student who loves math and wants to know more about the number pi?… An as-pi-ring mathematician!
  42. I want to open a restaurant called Pi… All the food is round, but the pie are square. (Pie Jokes)
  43. A math teacher saw the movie American Pie… She gave it 3.14 stars. (Movie Jokes)
  44. What’s the best way to celebrate Pi Day?… With a slice of the pi(e). (Pie Jokes)
  45. Do You Know What Would Make Pi Day Better?… Cake. (Cake Jokes)
  46. What do you call a snake that is exactly 3.14 ft long?… A π-thon. (Snake Jokes)
  47. Mathematician: Pi r squared. Baker: No! Pies are round, cakes are square! (Pie Jokes & Geometry Jokes)
  48. How do you cremate someone who died on Pi Day?… You burn them on their funeral pi res. (Cemetery Jokes)
  49. What do you get when you take the sun and divide its circumference by its diameter?… Pi in the sky. (Sun Jokes)
  50. How much did it cost the pirate to have his ears pierced on the Pi Day special?… A buck an ear! (Pirate Jokes)
  51. Why is 6 afraid of pi?… Most say it’s an irrational fear. (Psychology Jokes)
  52. I know every single digit of pi!… Just not in the right order.
  53. What happens when you eat less pi and focus on diet and exercise?… You get a smaller circumference.
  54. What was Sir Isaac Newton’s favorite dessert?… Apple pi! (Apple Pie Jokes)
  55. Why is pi so lucky in love?… Because its love is infinite and non-repeating.
  56. Come to the nerd side… we have pi!
  57. Where should you do your Pi Day math homework?… On a multiplication table.
  58. What do you call an octopus which is missing 4 and 6/7 legs?… An octo-pi. (Octopus Jokes)
  59. What’s a mathematician’s favorite fruit?… A pi-neapple.
  60. What did the mathematician say to the dough on Pi Day?… Let’s make some pi-zza! (Pizza Jokes)
  61. What is the #1 drink at a Chinese Food restaurant on Pi Day… A Mai Pi. (Beer Jokes)
  62. It’s only a matter of time before the Pi-variant of the Coronavirus is discovered now… We’ll have come full circle then. (Covid Jokes)
  63. When pi felt sick after getting food poisoning on Pi Day, what medicine did the doctor prescribe?… Anti-pi-otics.
  64. What do you get when a bunch of sheep stand around in a circle?… Shepherd’s pi. (Pie Jokes)
  65. 3.14 in the mirror reads ‘PIE.’
  66. What do Pi and anti-vaxxers have in common?… They’re both irrational. (Covid Jokes)
  67. What did the romantic bird call his significant other on Pi Day?… A tweet-y pi. (Bird Jokes)
  68. You know what they say about Pi Day… It really is an irrational holiday. (March Jokes)
  69. Knock, knock… Who’s there?… Pi… Pi who?… Pi-rate mathematicians never die, they just go off on a tangent. (Pirate Jokes for Kids & Cemetery Jokes)
  70. Why did the mathematician refuse to celebrate Pi Day?… They thought it was just a bunch of irrational nonsense.
  71. mathematician, a physicist, and an engineer are all given identical rubber balls and told to find the volume. They are given anything they want to measure it, and have all the time they need. The mathematician pulls out a measuring tape and records the circumference. He then divides by two times pi to get the radius, cubes that, multiplies by pi again, and then multiplies by four-thirds and thereby calculates the volume.The physicist gets a bucket of water, places 1.00000 gallons of water in the bucket, drops in the ball, and measures the displacement to six significant figures. And the engineer? He writes down the serial number of the ball, and looks it up.
  72. Pi had its driver’s license revoked because it didn’t know when to stop. (Car Jokes)
  73. If I rated my love for you from 1-10 it’d be pi… Because it is both infinite, and not that much.
  74. What do you call just over three rodents on a boat?… Pi-rats.
  75. Why do some people not like Pi jokes?… It goes on and one, forever.
  76. What do you get when you cross a snowman and a Pi Day pie?… Froze-zen pi. (Snowman Jokes & Pie Jokes)
  77. What do you get when you divide 355 Jack-o’lanterns by 113 Jack-o’lanterns?… Pumpkin Pi.
  78. What TV show can help you grasp infinite numbers?… Magnum P.I.
  79. Kiss me, I’m Pirish! (St. Patrick’s Day Jokes)
  80. Pi and I were having an argument When suddenly i shouted “will you just be rational” Pi responded “get real.”
  81. Having an argument with pi just goes around in circles
  82. How many grams of protein are there in that slice of chocolate pie?… 3.14159265. (Candy Jokes & Pie Jokes)
  83. What do you call a mathematician who becomes a secret agent?… A s-pi.
  84. Pi is very important ….. Without it our opinions would just be onions. (Onion Jokes)
  85. Why don’t mathematicians tell jokes on Pi Day?… Because they’re too irrational.
  86. Why was the math book sad on Pi Day?… Because it had too many problems.
  87. 3.14% of math professors dress as PI rates for Halloween! (Halloween Jokes & Pirate Jokes)
  88. Do you know that Netflix has devised the perfect way to stop the distribution of pirated movies?… They now block all movies with an IMDB rating of 3.14. Pi-rated. (Movie Jokes & Pirate Jokes)
  89. Do you know that Chuck Norris can recite the entirety of pi?… Backwards.
  90. Seriously, people need to stop with the Pi Day jokes… I’ve heard them all like 3.14 million times already.
  91. Why did the pumpkin pie go to a dentist on Pi Day?… Because it needed a filling.
  92. My friend has a fear of pi… I keep telling him it’s irrational, but he doesn’t listen. (Psychology Jokes)
  93. How far can you recite pi?… Cherry, Apple, Pecan, Blueberry… (Pie Jokes)
  94. What did the triangle say to the circle?… You’re pointless.
  95. Why is a priest’s favorite number 3.14?… Because they are very pi-ous.
  96. What did the mathematicians prepare for dinner on March 14th?… Shepperd’s Pi!
  97. Why did the other numbers avoid talking to Pi at the party?… It goes on forever.
  98. How many pastry chefs does it take to make a pie?… 3.14. (Pie Jokes)
  99. The moon’s not made of cheese… It’s a pi in the sky! (Cheese Jokes & Full Moon Jokes)
  100. What famous private investigator solves math problem?… Magnum PI. (Hawaii Jokes)
  101. Why shouldn’t you eat too much pi?… You’ll end up with a big circumference. (Pie Jokes)
  102. What did pi say to its sweetheart?… You look radian today.
  103. What do you get when you eat 3.14 slices of cake?… Diabetes. You get Diabetes.
  104. What is a mathematician’s favorite snake?… A pi-thon. (Snake Jokes)
  105. What do you get if you divide the circumference of a bowl of ice cream by its diameter?… Pi a’la mode. (Ice Cream Jokes)
  106. A pizza has a radius z and thickness a. It’s volume is pizza (or pizz*a) (Pizza Jokes)
  107. I just saw the movie American Pi… I gave it a rating of 3.14. (Movie Jokes)
  108. What is that one movie that pi likes to watch at any day, any time?… Life of Pi. (Movie Jokes)
  109. What do you call Tom Selleck when he’s solving math problems?… Magnum Pi.
  110. I tried to connect my Raspberry Pi to my printer…. But the printer always jams!
  111. Where does a dough-shaped disc topped with melted cheese and seasoned tomato sauce with a radius of z and a depth of a get it’s name from?… Pizza ( Pi x z x z x a ) (Pizza Jokes)
  112. Teacher: What is the area of a circle? Students: Pi r squared. Teacher: No. Pie are round. Cake are squared.
  113. What did the students say about their Euclidean geometry test?… It was easy as pi.
  114. What did the mathematicians eat for dessert on March 14th?… Apple pi. (Apple Pie Jokes)
  115. What’s wrong with the equation “pi r squared?”… Pi are round. Cake are square. (Cake Jokes & Pie Jokes)
  116. What do you call it when someone gets a huge tattoo of pi on their face?… An irrational decision.
  117. Do you know the guy who knows every single digit of pi?… He just doesn’t have them in the right order.
  118. How do you calculate the surface area of a cephalopod?… Using octoPi.
  119. What’s the ratio of a pumpkin’s circumference to its diameter?… Pumpkin Pi. (Halloween Jokes & Pumpkin Jokes)
  120. What do you get when you take green cheese & divide its circumference by its diameter?… Moon Pi (Full Moon Jokes)
  121. I call my wife “PI”… Because she is irrational.
  122. 3.14% of math teachers dress as PI rates for Halloween! (Halloween Jokes & Pirate Jokes)
  123. I call my boyfriend “PI”… Because he is irrational.
  124. What do you get if you eat 3.14 pies?… Fat. You get fat.
  125. Don’t let advanced math intimidate you!… It’s as easy as pi!
  126. What do you get when you take a native Alaskan and divide its circumference by its diameter?… Eskimo pi. (Alaska Jokes)
  127. Eating too much cake is the sin of gluttony… However, eating too much pie is okay, because the sin of pi is zero.
  128. What do you call a square peg that wonders if it could plug a round hole?… Pi-curious.
  129. What’s a nerd’s favorite dessert?… Raspberry pie.
  130. Why do teenagers travel in groups of three?… Because they can’t even.
  131. The engineer said: “It is approximately 3 and 1/7″ The physicist said: “It is 3.14159.” The mathematician thought a bit, and replied “It is equal to pi.” A nutritionist: “Pie is a healthy and delicious dessert!” (Pie Jokes)
  132. What do you get when you take a bovine and divide its circumference by its diameter?… A cow pi.(Cow Jokes)
  133. What do we get when we take the object and order the rim by the diameter?… Pi in the sky by and by.
  134. Want to see all the decimal digits of Pi?… 0,1,2,3,4,5,6,7,8,9 and there are no others!
  135. What is the ideal number of pieces to cut a pie into?… 3.14. (Pie Jokes)
  136. What do you get when you cut a jack o’lantern by its diameter?… Pumpkin Pi! (Top Halloween Jokes)
  137. What kind of snake does a math teacher own?… A pi-thon.
  138. What kind of snake does a math professor own?… A pi-thon.
  139. What kind of snake does a math major own?… A pi-thon.
  140. What kind of snake does a math tutor own?… A pi-thon.
  141. What did pi say to its significant other?… Stop being so irrational.
  142. How do you develop a secure password to protect yourself against hackers?… Just make it the last 10 digits of pi.
  143. 3.14% of math majors dress as PI rates for Halloween! (Halloween Jokes & Pirate Jokes)
  144. Knock, knock… Who’s there?… Noah… Noah, who?… Noah good joke about Pi Day?
  145. Why should you never start talking to pi at a party?… Because it just goes on forever.
  146. What’s wrong with the equation pi r squared?… Pi are round. Cake are square. (Cake Jokes)
  147. What did pi say in an argument with his significant other?… You’re being irrational.
  148. What did the students say about their Euclidean geometry test?… It was easy as pi.
  149. What did pi say in an argument with his friend?… You’re being irrational.
  150. What did pi say in an argument with his parent?… You’re being irrational.
  151. What did pi say in an argument with his child?… You’re being irrational.
  152. Knock Knock… Who’s there?… June… June who?… June know how to tell a good Pi Day knock-knock joke?
  153. How many calories are there in that slice of chocolate pi?… Approximately 3.14.
  154. Knock Knock… Who’s there?… June… June who?… June know any good Pi Day knock knock jokes? (June Jokes Spring Knock Knock Jokes)
  155. Did you hear about the statistician who drowned crossing a river?… It was three feet deep on average
  156. I call my husband “PI”… Because he is irrational.
  157. What did the middle school math book tell the #2 pencil?….I have a lot of problems. (Pencil Jokes / Math Jokes / Pi Day Jokes)
  158. A farmer counted 196 cows in the field. But when he rounded them up, he had 200.
  159. Did you hear about the mathematician who’s afraid of negative numbers?… He’ll stop at nothing to avoid them.
  160. “Waiter, will my pizza be long?”… “No sir, it will be round!” (Pizza Jokes for Kids)
  161. What was the Christmas tree’s favorite shape?… A treeangle. (Geometry Jokes & Pi Day Jokes)
  162. Why did two fours skip dinner?… Because they already 8.
  163. Why is it tragic that parallel lines have so much in common?… Because they’ll never meet.
  164. What do you call a number that can’t stay in one place?… A roamin’ numeral.
  165. Why don’t calculus majors throw house parties?… Because you should never drink and derive. (Calculus Jokes)
  166. How do mathematicians scold their children? “If I’ve told you n times, I’ve told you n+1 times…”
  167. Old mathematicians never die… They just lose some of their functions.
  168. Why should you never mention the number 288?… It’s two gross.
  169. Did you hear the one about the statistician?… Probably.
  170. Not all math puns are terrible… Just sum.
  171. Why did the chicken cross the Mobius Strip?… To get to the same side.
  172. Why do mathematicians like parks?… Because of all the natural logs.
  173. What happens when you put a root beer in a square glass?… It just becomes beer.
  174. Why can math books be so depressing?… Because they’re filled with problems.
  175. Why was the math lecture so long?… The professor kept going off on a tangent.
  176. When is math like poetry?… When you do an in-verse variation.
  177. Math is a part of nature… Especially geometry (geome-tree.)
  178. What kind of math do you learn in English class?… Add-verbs and add-jectives.
  179. What’s the best way to woo a mathematician?… Use acute angle.
  180. What do you need to grow your trigonometry skills?… Square roots.
  181. Why does algebra make you a better dancer?… Because you can use algo-rhythms.
  182. Where should you do your math homework?… On a multiplication table.
  183. What’s the best formula to get from point A to point B?… Just take an x-y plane or a rhom-bus.
  184. Where do mathematicians party?… In bar graphs.
  185. How do you do math in your head?… Using imaginary numbers.
  186. What do you call friends who love math?… Alge-BROS
  187. I call my girlfriend “PI”… Because she is irrational.


Other great math jokes

What do you get when you take a native Alaskan and divide its circumference by its diameter?… Eskimo pi.

  1. Why are moles bad at counting?… Because they only know one number. (Mole Day Jokes)
  2. Why should you never mention the number 288 in front of anyone?… Because it is too gross (2 x 144 – two gross).
  3. How is the moon like a dollar?… They both have 4 quarters.
  4. How can you add eight 8′s to get the number 1,000? (only using addition) A: 888 +88 +8 +8 +8 = 1,000
  5. How many eggs can you put in an empty basket? … Only one, after that the basket is not empty.
  6. Where can you buy a ruler that is 3 feet long?… At a yard sale
  7. When things go wrong, what can you always count on?… Your fingers.
  8. What coin doubles in value when half is deducted?… A half dollar.
  9. Why are diapers like 100 dollar bills?… They need to be changed.
  10. What goes up and never comes down?… Your Age
  11. Why is the longest human nose on record only 11 inches long?… Otherwise it would be a foot.
  12. Why do they never serve beer at a math party?… Because you can’t drink and derive…
  13. Why didn’t the quarter roll down the hill with the nickel?… Because it had more cents.
  14. What did Avogadro teach his students in math class?… Moletiplication. (Mole Day Jokes)
  15. Why is 6 afraid of 7?…  Because 7 8(ate) 9
  16. What is a proof?… One-half percent of alcohol.

Geometry Jokes (33)

  1. What do you call a teapot of boiling water on top of mount everest?… A high-pot-in-use
  2. What do you call a crushed angle?…. A Rectangle (wrecked angle)
  3. What did the baby tree say when it looked in a mirror?… Gee-Om-A-Tree.
  4. What do you get when you cross geometry with McDonalds?… A plane cheeseburger.
  5. Why did I divide sin by tan?… Just cos.
  6. What shape is usually waiting for you at Stabucks?… A line.
  7. Why did the obtuse angle go to the beach?… because it was over 90 degrees.
  8. What do you get when you cross a mountain climber and a mosquito?…
  9. Nothing! You know you can’t cross a scalar and a vector.
  10. What did the acorn say when he grew up?… Gee, I’m A Tree!
  11. Why does nobody talk to circles?… Because there is no point!
  12. What do you call an angle which is adorable?… acute angle
  13. What did the student say when the witch doctor removed his curse?… Hexagon
  14. Who invented the Round Table?… Sir Cumference.
  15. Which triangles are the coldest?… Ice-sosceles triangles.
  16. What do people who whine a lot and 3 points have in common?… They are both coplaners
  17. How many grams of protein are there in that slice of chocolate pie?… 3.142
  18. What kind of tree does a math teacher climb?… Geometry
  19. What do you call people who like tractors?… Protractors
  20. Why were the similar triangles weighing themselves?… They were finding their scale.
  21. Why won’t the circles invite the ellipses over for dinner?… They are too eccentric.
  22. Why did the 30-60-90 triangle marry the 45-45-90 triangle?… They were right for each other.
  23. Why is a geometry book always unhappy?… Because it always has lots of problems.
  24. Why is Ms. Radian such a good reporter?… She covers the story from every angle.
  25. Why couldn’t the angle get a loan?… His parents wouldn’t cosine
  26. Where do circles, ellipses, hyperbolas and parabolas like to hang out in the summer?… Coney Island.
  27. Why didn’t the chicken cross to the other side of the inequality?… It couldn’t get past the boundary line.
  28. Q: What do you get if you divide the cirucmference of a jack-o-lantern by its diameter?… Pumpkin Pi
  29. Why was the parent function upset with its child?… It was stretched to its limit.
  30. What is a proof?.. One-half percent of alcohol.
  31. Why do you rarely find mathematicians spending time at the beach?… Because they have sine and cosine to get a tan and don’t need the sun!
  32. What did one geometry book say to the other?… Don’t bother me I’ve got my own problems!
  33. What do you call a broken record?… A Decca-gone


Calculus Jokes (21)The worst thing about getting hit in the face with pi is that it never ends.

  1. Why do they never serve beer at a math party?… Because you can’t drink and derive…
  2. Why won’t Goldilocks drink a glass of water with 8 pieces of ice in it? It’s too cubed.
  3. What’s the integral of (1/cabin)d(cabin)?… A natural log cabin!
  4. What is the first derivative of a cow?… Prime Rib!
  5. What is the value of the contour integral around Western Europe?… Zero. Why?
  6. Because all poles are in Eastern Europe!
  7. How does a mathematician induce good behavior in her children?… “I’ve told you n times, I’ve told you n+1 times…”
  8. What is polite and works for the phone company?… A deferential operator.
  9. Why was the parent function upset with its child?… It was stretched to its limit.
  10. Did you hear the joke about the statistician?… Probably
  11. What wild animal is good at calculus?… The tangent lion.
  12. Why is a calculus book always unhappy?… Because it always has lots of problems.
  13. Why was the Calculus teacher bad at baseball?… He was better at fitting curves than hitting them.
  14. Why was the function so bent out of shape?… It’s regression model was too tight a fit.
  15. What is the integral of log cabin d cabin?…Log Cabin + sea = houseboat.
  16. Why do you rarely find mathematicians spending time at the beach?… Because they have sine and cosine to get a tan and don’t need the sun!
  17. What did one calculus book say to the other?… Don’t bother me I’ve got my own problems!
  18. What’s yellow and equivalent to the Axiom of Choice?… Zorn’s Lemon.
  19. Why did the algebra students throw bottles of hand cream across the classroom?… They were investigating projectile lotion.
  20. What do you get if you cross an elephant with a zebra?…  Elephant zebra sin theta.
  21. Why is it that the more accuracy you demand from an interpolation function, the more expensive it becomes to compute?… That’s the Law of Spline Demand.


Algebra Jokes (22)

  1. Why was the student afraid of the y-intercept?… She thought she’d be stung by the b.
  2. Who invented algebra?… A Clever X-pert.
  3. What do you call mall friends who love math? alge “bros”
  4. Why won’t Goldilocks drink a glass of water with 8 pieces of ice in it?… It’s too cubed.
  5. What do you get when you cross an algebra class with the prom?… The quadratic formal.
  6. What do you get when you cross a mountain climber and a mosquito?… Nothing! You know you can’t cross a scalar and a vector.
  7. Why is an algebra book always unhappy?… Because it always has lots of problems.
  8. Why do you rarely find mathematicians spending time at the beach?… Because they have sine and cosine to get a tan and don’t need the sun!
  9. What is purple and commutative?… An abelian grape
  10. What shape is usually waiting for you at Stabucks?…  A line.
  11. Why did the relation need a math tutor? … It failed the vertical-line test.
  12. How can a fisherman determine how many fish he needs to catch to make a profit?… By using a cod-ratic inequality.
  13. Why did the imaginary number turn red?… It ran out of i-drops.
  14. What does the little mermaid wear?… An algae-bra.
  15. How does a ghost solve a quadratic equation?… By completing the scare.
  16. What is a proof?… One-half percent of alcohol.
  17. What did algebra math book say to the other?… Don’t bother me I’ve got my own problems!
  18. What is the definition of a polar bear?… A rectangular bear after a coordinate transformation
  19. Why did all the apples in the fruit bowl know each other?… They were core-relations.
  20. Why was the matrix arrested?… Illegal entry.
  21. What do you call a rodent with babies?… A quad-rat-ic parent.
  22. What do you get when you cross a linebacker with a computer geek?… A linear programmer.
  23. What did the math teacher have for dessert in the 1st day of school?… Pi. (Dessert Jokes / Math Jokes / Back to School Jokes for Kids)
  24. What do you get when you divide the circumference of your jack-o-lantern by its diameter?… Pumpkin Pi. (Pumpkin Jokes)