What are some simple math jokes?

1, Mom: "Obviously, you have been in school for more than three months. Which do you think is easier to learn, Chinese or math? "

Mingming: "Math is easy to learn."

Mother: "Why?"

Mingming: "Because there are many new words in Chinese, there are only numbers from 0 to 90 in mathematics."

2. An American graduate student from the Department of Mathematics came to Taiwan Province Province to collect information about the development of ancient mathematics in China, and my friend asked me to entertain him. He came to the East for the first time and didn't learn Chinese, but he learned to write the intricate word "Zhang" in just half an hour-and it was cursive. Surprised, I can't help but ask the genius. He said, "Nothing. I just wrote the number three and thirteen quarters in one stroke. "

3. A foreign scholar (engaged in mathematics research) visited our school and stayed in the foreign guest house. When he was leaving, I asked him what his impression of our school was. He said, "The hostel in your school is so bad that I dare not live there any more!" I quickly asked the reason. The professor said: "the mouth of the eating bowl can't be guided everywhere." This is not for people to see! " "

Mathematicians, biologists and physicists sit in street cafes and watch people go in and out of the house across the street. They first saw two people go in, and after a long time, they saw three people come out. Physicist: "The measurement is not accurate enough." Biologist: "They reproduce." Mathematician: "If one more person goes in now, the house will be empty."

Physicists and engineers lost their way in the Grand Canyon by hot air balloon. They shouted for help: "Hello! Where are we? " After about 15 minutes, they heard the response echoing in the valley: "Hey! You are in a hot air balloon! " The physicist said, "That guy must be a mathematician." The engineer wants to know, "Why?" The physicist said, "Because it took him a long time to give a completely correct answer, but it was useless."