1. The story between numbers

One day, when the number cards were having lunch together, the youngest one started talking.

My brother 0 said, "Let's take some group photos together. What do you think?"

O's brothers and sisters said in unison: "Okay. Ah."

Brother 8 said, "Brother 0 has a really good idea. I'll just be a good person for once and I will provide you with cameras and film, okay?"

Old 4 spoke: "Brother 8, it's good, but it's a little too troublesome, so why not use my digital camera, let's leave it at that."

So, they became busy, and finally + took the photos for them, and immediately sent the digital camera to the printing shop. The printing was done, and the computer sister wanted money from them, but who would pay for it? They looked at each other blankly one by one. This is what the computer sister said: "One *** five yuan. You have eleven brothers and sisters. How much do you pay on average?"

Among the eleven of them, Lao Liu is the smartest. This time it was the first to calculate the result. Do you know how it calculated it?

2. The story of the mathematical genius Gauss when he was a child

When Gauss was in elementary school, after the teacher finished teaching addition, the teacher wanted to take a rest, so he asked a question. Let the students do the math. The question is:

1+2+3+ ..... +97+98+99+100 = ?

The teacher was thinking, this Children must wait until get out of class is over! Just when he was about to make an excuse to go out, he was stopped by Gauss! ! It turns out that Gauss has already calculated it. Children, do you know how he calculated it?

Gauss told everyone how he calculated it: add 1 to 100 and 100 to 1 in two rows, that is to say:

1+2+3+ 4+ ..... +96+97+98+99+100

1099+98+97+96+ ..... +4+3+2+1

=101+101+101+ ..... +101+101+101+101

***There are one hundred 101s added, but the calculation is repeated twice, so Divide 10100 by 2 and you will get the answer which is equal to <5050>

From then on, Gauss's learning process in elementary school has already surpassed other students, which laid the foundation for his future mathematics and made him become—— Math genius!

3. European 0

About 1,500 years ago, European mathematicians did not know how to use "0". They use Roman numerals. Roman numerals use several symbols to represent numbers, and according to certain rules, they are combined to represent different numbers. In this use of numbers, the number "0" is not needed.

At that time, a scholar in the Roman Empire discovered the symbol "0" from Indian notation. He found that with "0", it was extremely convenient to perform mathematical operations. He was very happy and introduced the Indian method of using "0" to everyone. After some time, this matter was known to the Pope in Rome at that time. It was the Middle Ages in Europe at that time, the church was very powerful, and the power of the Pope far exceeded that of the emperor. The Pope was very angry. He rebuked that the sacred numbers were created by God. There is no monster "0" in the numbers created by God. Whoever wants to introduce it now is blaspheming God! So the Pope ordered that the scholar be arrested and tortured. His ten fingers were clamped tightly with clamps, which made his hands disabled and he could no longer hold a pen and write. In this way, "0" was expressly banned by the ignorant and cruel Pope of Rome.

However, although the use of "0" was prohibited, Roman mathematicians still used "0" secretly in mathematical research regardless of the ban, and still used "0" to make a lot of mathematics. contribution to. Later, "0" was finally widely used in Europe, while Roman numerals were gradually phased out.

4. Tang Seng and his apprentice picked peaches

One day, Tang Seng ordered his apprentices Wukong, Bajie and Sha Seng to go to Huaguo Mountain to pick some peaches. Not long after, the three apprentices came back happily after picking peaches. Master Tang Seng asked: How many peaches did each of you pick?

Bajie smiled and said: Master, let me test you. We each picked the same number. There were less than 100 peaches in my basket. If I counted 3 by 3, there would be 1 left at the end. Do the math, how many did each of us pick?

Sha Monk said mysteriously: Master, I’m here to test you too. If I count the peaches in my basket 4 by 4, there will be 1 left at the end. Do the math, how many did each of us pick?

Wukong smiled and said: Master, I’m here to test you too. If I count the peaches in my basket five by five, there will be only one left at the end. Do the math, how many do we each pick?

Tang Seng quickly told the number of peaches each of them picked.

Do you know how many peaches each of them picked?

5. Fence

A farmer invited engineers, physicists, and mathematicians to enclose the largest area with the fewest fences. The engineer built a circle with a fence and declared it the optimal design. The physicist stretched the fence into a long straight line, assuming that the fence was infinitely long, thinking that it would be big enough to encircle half of the earth. The mathematician gave them a good laugh. He fenced himself in with a few fences

and said, "I'm outside now.

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