Look for interesting stories about numbers related to the numbers in the circle

Let's imagine a drunkard drinking in a mountain temple and getting drunk to death in a ravine

A pot of wine in a temple on the top of the mountain (, children's music (26), I don't have enough to eat in three pots (535897), wine kills (932)! Kill (384), Joy and Joy (626). Death is just (43383), and the ditch is abandoned (279). "Top 30].

Then, imagine how the father of the "deceased" would feel when he learned that his son was "dead":

My Pain (502), it is sad enough to die in vain (8841971), leaving it to the ravine (69399). "15 bits].

Imagine the "deceased" father going to the ravine to look for his son

I have low back pain (37510), I'm afraid that you will freeze for a long time (58209), and I think about it for a long time (74944). "15 bits].

Then, there is the scene where the father finds his son in a ravine and revives him, and the son is lost

I save the child (592), the cave (307), and the inappropriate to stay (816). Neighbors are happy (406), children are unhappy (286), and children love their fathers for a long time (20899). Dad Leer doesn't understand (86280).

Think twice (348)! 'Enlightenment (25). Think twice and follow (34211), and wait for a long time (70679).

Last 40 bits].

The interesting story of the number 1 9 is as follows:

When Gauss was still in the second grade of elementary school, one day his math teacher wanted to use the class time to deal with some personal matters, so he planned to solve a difficult problem for the students to practice. His title is: 1+2+3+4+5+6+7+8+9+10=?

Because addition has just been taught, the teacher thinks that it will take a long time for students to come up with this problem. You can also take this opportunity to deal with the unfinished business. But in the blink of an eye, Gauss had stopped writing and sat idlely.

The teacher saw it and angrily reprimanded Gauss.

But Gauss said he had already figured out the answer, which was 55. The teacher was startled and asked Gauss how he calculated it. Gauss replied

I just found out that the sum of 1 and 10 is and 9 and 8 and 7 and 6 and 11, and because 11+11+11+11+11=55, that's how I calculated. After hearing this, the teachers and classmates all gave Gauss a thumbs up. Later, Gauss grew up and became a great mathematician.

Induction of simple methods for elementary school mathematics.

1. Extract the common factor: This method actually uses the multiplicative distributive law to extract the same factor, and the remaining terms in the exam are often added and subtracted, and an integer will appear.

2. Borrowing and borrowing method: When using this method, you need to pay attention to observation and find the law.

3. Splitting method: The splitting method is to facilitate the calculation of splitting a number into several numbers.

1. The four Tang monks and apprentices walked on the boundless desert, they were hungry and tired, Zhu Bajie thought: How good it would be if there was a good meal! Sun Wukong is not as greedy as Bajie, Wukong just wants to drink a glass of water.

Sun Wukong thought about it, a family appeared in front of him, and there was a glass of milk on the table at the door, Sun Wukong hurriedly stepped forward, ready to drink this cup of milk, but the host said: "Great sage and slow, if you want to drink this cup of milk, you must answer a math problem correctly." "Sun Wukong thought, isn't it just a math problem, it won't be difficult for my grandson.

Sun Wukong agreed. The host asked: Pour a glass of milk, you first drink 1 2 full of water, then drink 1 3, fill up with water, and finally drink all this drink, and ask which one you drink more milk or water? Why?

2. During the Warring States Period, King Qi Wei and the general Tian Ji raced horses, and King Qi Wei and Tian Ji each had three good horses: upper horses, middle horses and lower horses. The race is divided into three races, with each horse being wagered on a thousand gold.

Since the horsepower of the two is almost the same, and King Qi Wei's horse is better than Tian Ji's corresponding level of horse, so most people think that Tian Ji will definitely lose.

However, Tian Ji adopted the advice of the doorman Sun Bin (a famous military strategist), and used the dismount to match the upper horse of King Qi Wei, the upper horse to the middle horse of King Qi Wei, and the middle horse to the dismount of King Qi Wei, and as a result, Tian Ji won a thousand gold by defeating King Qi Wei 2-1. This is an example of China's ancient application of the idea of countermeasures to solve problems.

3. Thales saw that people were looking at the notice, so he went up to look at it. It turned out that the notice said that Pharaoh was looking for the wisest man in the world to measure the height of the pyramid. So he went to Pharaoh. Pharaoh asked Thales what tools he used to measure the pyramids.

Thales said that he used only a stick and a ruler, and he stuck the stick next to the pyramid, and when the shadow of the stick was as long as the stick, he measured the length of the shadow of the pyramid and half the length of the bottom side of the pyramid. Add these two lengths together to get the height of the pyramid. Thales is the smartest man in the world, and he easily measured the height of the pyramid without having to climb to the top of it.