What are some simple math jokes?

1, probability

I visited the weather station and saw many latest weather forecasting instruments.

After the visit, I asked the stationmaster, "You said there was a 75% chance of rain. How did you calculate it?"? "

Without much thought, the stationmaster replied, "That is to say, there are four people here, and three of them think it will rain."

2. Numbers

"Numbers don't lie," said the teacher. "If a house takes one person twelve days to build, twelve people only need one day. One hour is enough for 288 people. "

A student went on to say, "Seventeen thousand two hundred and eighty people only need one minute, and 1,036,800 people only need one second. In addition, if it takes six days for one ship to cross the Atlantic, it takes six ships a day. Four cups of water at 25℃ add up to boiling water! Numbers don't lie! "

3. How many times

The teacher asked in class, "How many wars took place in Spain in the fifteenth century?"

"Six times." A student answered quickly.

"Which six times?" The teacher asked again.

"The first time, the second time, the third time, the fourth time, the fifth time and the sixth time."

4. Right angle

Teacher: "You haven't proved this geometry problem, how can you conclude that this angle is a right angle?"

Student: "I measured it with a protractor."

Step 5 count

My son is three years old. He already knows how to count from one to ten, and he also knows that five is bigger than one. I also look for opportunities to teach him at any time and ask him which is bigger, the dog or the kitten.

Once, I took a chocolate in my left hand and two chocolates in my right hand and asked him, "Which side is more?" "。 My son didn't answer, so I continued to ask patiently. The son burst into tears and said, "There are few noodles! " "