Interesting content of mathematical handwritten newspaper

Interesting mathematical handwritten newspaper content model

Interesting mathematical handwritten newspaper materials:

Many people think that mathematics is not only boring, but also meaningless, difficult to learn and useless. In fact, the kingdom of mathematics is not what people think. He also has many interesting places. As long as he is interested, he will find it interesting:

1. Three men were eating in a restaurant, and * * * spent 250 yuan, each of whom paid 100 yuan, and got back three notes 10 yuan and one note 20 yuan. Three people each took a 10 yuan note, leaving 20 yuan's note. In this way, everyone spent 90 yuan. That is, 90×3=270 (yuan), plus 20 yuan paper money without change, ***290 yuan. So,1where is 0 yuan?

A: Nothing was lost.

Note: Three people take out 100 yuan, take back 10 yuan, and actually pay 90 yuan. The total expenditure of three people is 90×3=270 yuan. Among them, 250 yuan gave it to the waiter, leaving 20 yuan paper money. Therefore, it is not correct to add this 20 yuan banknote to 270 yuan.

When a king celebrated the prince's birthday, he issued an amnesty. "The sentences of all prisoners are halved." Everyone is very happy after hearing the news. It's just that the king's ministers are worried about the treatment of prisoners who are imprisoned for life. Because, I don't know how many years they can live. The emperor ordered "without exception, all prisoners' sentences will be halved." While thinking, a priest shouted, "Yes! "So, what does the minister think?

A: Prisoners imprisoned for life are put into prison every other day.

Note: Don't be confused by how many years a prisoner can live.

Two pedestrians want to eat bread, one takes out four pieces and the other takes out three pieces. Then another pedestrian came and invited him to dinner. Each piece of bread was cut into three pieces, and everyone ate seven pieces. The entertained pedestrian took out seven gold coins in return. So, how many gold coins did the first two people get each?

A: The first pedestrian got 5 gold coins, and the second pedestrian got 2 gold coins.

Note: Gold coins are distributed not according to the number of bread (3×4 = 12 for the first pedestrian and 3×3 = 9 for the second pedestrian), but according to the number of bread for the third pedestrian (3×4-7 = 5 for the first pedestrian and 3×3-7 = 2 for the second pedestrian).

4. Dogs and cats race. Dogs jump three feet at a time and cats jump two feet at a time. But the cat can jump three times in the time that the dog jumps twice. They chose two trees with a distance of 100 feet to compete to see who can jump in a short time. What will be the result of the competition?

The cat won.

Note: Although a cat jumps six feet in the same time as a dog, it is impossible for a dog to jump three feet at a time, so it will jump two feet more, which is equivalent to jumping 204 feet and four feet more than a cat, so a dog is slower than a cat. Some suggestions seem simple, but there are hidden traps, so we need to be careful everywhere. After reading these four questions, I will definitely feel interesting and gain something. Therefore, mathematics is also a very interesting subject!

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