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In everyday life, mathematics is everywhere, for example: buying groceries, selling groceries, calculating how much money ......
Here's a little story, a story between numbers.
One day, while the numbers were having lunch together, the youngest one spoke.
0's brothers and sisters said in unison, "Okay." ”
Brother 8 said: "Brother 0's idea is really good, I'll be a good person, my old 8** camera and film, okay?" ”
Old 4 spoke: "Brother 8, it's good, it's just too troublesome, so it's better to use my digital camera, so it's decided." ”
So, they got busy, and finally the + number helped them shoot, and immediately sent the digital camera to the printing shop, and the computer sister thought they wanted to ask for money, but who paid for them? They looked at each other blankly, this is the computer sister said: "A total of 5 yuan, you have a total of 11 brothers and sisters, how much yuan does one person pay on average?"
Among the eleven of them, the sixth is the smartest, and this time it is the first to calculate the result, do you know how it calculated?
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The four little monkeys went to the forest to pick fruits, picked a large bag of fruits, and prepared to eat them the next day.
Xiao Huang divided the fruit into 4 equal parts, and there was one left. And he ate his portion and the superfluous.
The floret divided the rest of the fruit into four equal parts, one more. He ate the extra one with his own.
Blackie did the same again.
Seeing that there was not much fruit left, Fat thought that this was the fruit of his partners' labor, so he divided the fruit into 4 equal parts, and ate the extra one and the one he only had.
How many fruits did they pick?
Answer: 4+1=5 (only).
5 4 1 21 (only).
21 4 1 85 (only).
85 4 1 341 (only).
A total of 341 fruits were harvested.
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I remember a funny question about a grandson's soldiers. The title is as follows:
There are things today, but I don't know how many they are. Two of the three and three are left, three of the five and five are left, and two of the seven and seven are left. Ask about the geometry of things?
The meaning of the title is: There is a pile of items, the number is unknown. If three and three are counted to be two, five to five and three to be counted, and seven to seven and two to be left.
Q: What is the number of items in this pile? This "things do not know the number" problem is the world-famous "Sun Tzu problem", because its solution was discovered in China more than 1,500 years ago, so it is also called the "Chinese residual theorem" or "Sun Tzu's theorem".
The answer is 23+21k (k is a positive integer).
Think for yourself.
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"The towering ancient temple is in the mountains and forests, and I don't know how many monks there are in the temple. Three hundred and sixty-four bowls, see if you run them out. Three people eat a bowl of rice, and four people eat a bowl of soup. May I ask Mr. who is calculating, how many monks in the temple are counted.
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