A rabbit is counting mushrooms.
Mother rabbit picked mushrooms from the forest and went home. As soon as she put down the bag, the little white rabbit, the little gray rabbit and the little black rabbit gathered around happily, clamoring for the mushrooms that her mother had just picked.
Mother rabbit said, "children, don't be busy." I have to let you count how many mushrooms are in this bag first. "
Mother rabbit told me, "If these mushrooms are divided into two parts equally, there will be 1 mushroom left ..."
"Only in this bag.
Three mushrooms! "Before the mother rabbit finished, the little white rabbit scrambled to answer.
"That's not necessarily, maybe five, seven, nine, 1 1 ...? I can't count, it's odd anyway. " The little black rabbit said.
"Don't worry, I'm not finished yet!" Mother rabbit went on to say, "if this bag of mushrooms is divided equally among the three of you: the little white rabbit, the little gray rabbit and the little black rabbit, there will be one left in the end;" If a family of five is divided equally, there will still be one left in the end. Do the math, children? How many mushrooms are there in this bag at least? "
"This is not easy to calculate." The little white rabbit feels embarrassed.
However, Xiao Xuemian was not discouraged. He thought it over carefully and said confidently, "Mom, you picked at least 3 1 mushroom."
Mother rabbit said happily, "Yes! Then how did you work it out? "
Little grey rabbit said, "I think so." Because there is one part left in two parts, the number of mushrooms must be a multiple of 2 plus1; Moreover, it is divided into three parts on average, and all five parts have one left, so it must be a multiple of 3 plus 1 and a multiple of 5 plus 1. So the number of mushrooms is the common multiple of 2,3,5 plus 1. That is to say, there are at least 2× 3× 5+ 1 = 3 1 mushrooms in this bag. "
Mother rabbit is very satisfied with Little Grey Rabbit's answer. She happily divided the mushrooms into five parts and gave the extra 1 to the little gray rabbit.
2. The fourth grade math fairy tales (the shorter the better)
There are three ancient trees, and their ages are composed of three different numbers: 1, 2, 3, 4, 5, 6, 7, 8 and 9. One tree is exactly half the age of the other two trees. How old are these three ancient trees? "
The lame fox said, "This question is very simple. However, if I help you figure it out, can you give me a hand? "
"No problem! Save people! " The little squirrel readily promised.
The fox said, "You use the smallest three of these nine numbers, 1, 2, 3, to form 123, and the largest three numbers to form 789, 123+789 = 9 12, which is exactly twice as much as 456. In other words, 456 is exactly 12. "
The little squirrel said happily, "These three ancient trees are 123 years old, 456 years old and 789 years old. How old are they! Take good care of these ancient trees. "
3. Math fairy tales are 400 to 1000 words in the fourth grade.
One day, the king of the mathematics kingdom wanted to get a potion that could make people smart, so he looked for warriors everywhere. Max saw this notice and went to call at once.
The king encountered a problem: a tourist went to a hotel to stay, and his wallet was accidentally stolen, and he was going to take his gold bracelet (pictured) as collateral. Because gold bracelets are very precious things, when sawing, the number of sawing must be less. Q: If you hand in one copy a day, how many times do you have to read it at least?
Max thought for a moment and said, "Just once is enough. On the first day, I saw the third ring from the left and handed in the first ring; The next day, hand in the first ring and the second ring, and change to the third ring; Hand in the third ring on the third day; On the fourth day, pay four to seven rings and change one to three rings; Hand in the third ring on the fifth day; On the sixth day, hand in the first ring and the second ring, and change to the third ring; Pay the third ring on the seventh day. " Hearing this, the king and ministers applauded repeatedly and immediately ordered Max to be a warrior.
Max knows that the Mathematical Magic Castle has 998 1 floor. If he doesn't prepare some dry food, he will starve to death. So, Max went to the last floor of the mathematical magic castle. Today, the old cow came to me to buy half-fried eggs, and the little pig came to me to buy half-fried eggs. Now I have three fried eggs. Q: How many fried eggs did I eat? "
Max thought, you can only buy one. Where did you get half? But then he didn't know. It turns out that according to the ordinary calculation, you only need to go to a small shop selling fried eggs to buy fried eggs. When he arrived at the small shop, Mase told the boss about it. The boss is a talkative person. He said, "If you can answer me a question, I can give you all the fried eggs, and you can also bring French fries (3+0.5) × 2+0.5 × 2 = 15 (1). Let's check: the old cow bought half (7.5) plus 0.5 (8), the little pig bought half (3.5) plus 0.5 (4), and finally 15-(8+4) = 3 (4), so that's right.
Max reported the answer, and the shopkeeper quickly fried eggs for him and took him to the top floor.
Arriving at the top floor, a huge monster said to Mase, "There are three doors in front (pictured), and each door has a sign. Only one is wrong, and the wrong one is the real entrance. I will give you a chance, choose the right door, and I will let you in; Wrong, don't blame me for being rude. "
Max thought for a moment and said, "If the first sentence lies and says' I am the real entrance', then the last two sentences are consistent and possible; If the second one is a lie, the sentence "the third one is the real entrance" is completely inconsistent and should be ruled out; If the third one is lying, say' The first one is telling the truth', which is inconsistent with the second one. Therefore, the answer can only be the first door. " Said and walked in, only to find that there was only a piece of paper that read:
Congratulations on your success. Although there is no treasure in it, you have passed so many tests and become very smart.
Max went back to the palace and told the king. The king thought Max had lost, so he sent nine soldiers (1, 2, 3, 4, 5, 6, 7, 8, 9) to catch Max, and two friends of Max (0 and 1) also came to help. Max made them synthesize 10, and beat the king's army out of the water. The greedy king was driven off the stage and dealt with by law. The brave Max became king and was loved by the people.
4. Math Fairy Tales 100 words
There is a monkey in the forest. They live in harmony. Good food is always shared equally by everyone and never mistreats either side.
Once, 20 monkeys picked 130 wild pears, but it was impossible to calculate how many pears each monkey should get. The monkeys were so busy for a long time that they couldn't eat pears at once. Some of them jumped around, scratching their heads.
The scene of monkeys sharing pears has long been clearly seen by a fox hiding outside. At this time, the fox swaggered towards the monkeys. "Monkey, what makes you so anxious?" Without waiting for the monkey to answer, the fox went on to say, "This is because the pears are unevenly distributed. This matter is easy to handle. Let me help, will you? "
"Great!" Several monkeys agreed without saying anything.
So the fox pretended to count in detail, then counted the monkeys and said, "Your 130 pears will be distributed to 20 monkey brothers." According to the formula'130 ÷ 20', every monkey brother should get ... "
As he spoke, the fox wrote the vertical score "",130÷20 on the ground and crossed out a 0 after 13, and crossed out a 0 after 2, which is easy to forget.
The monkeys looked at ""and nodded. A monkey scrambled to say, "We only have one pear each, and there are/kloc-0 pears left." The fox patted the monkey on the shoulder: "Dude is very smart. Now you all take six, and finally let me try the last one. "
"Wait!" At this time, a golden monkey jumped in front of the fox and pointed to the vertical division he wrote, saying, "In the vertical division, cross out a zero, which means that they are reduced by 10 times at the same time, so the remainder is reduced by 10 times." In this way, the score you want is not 1, but 10. "
"It turns out that the fox is not kind enough to help!" The other monkeys understood at once.
5. Mathematical fairy tales
In the mysterious kingdom of mathematics, fat "0" and thin "1" are two "secondary figures" who often argue endlessly about who is important. Look! Today, two small enemies met in a narrow way, and another war of words was launched between them.
The thin man 1 spoke first: "Hum! Fat' 0', what's so great about you? Just like 100, what's the use of you two being fat without my thin'1'?"
Fat man "0" is not convinced: "Don't be overbearing in front of me. Think about it. Without me, where are you going to find other numbers 100? "
"hey!" "1" is not to be outdone. "If you are arrogant again, you are nothing. Look! 1+0' is not equal to myself. What's your use? "
"Let's go! The result of'1× 0' is not me, and your'1'is also useless! " "0" is tit for tat.
"You ..." "1"paused and improvised. "Anyway, your' 0' doesn't mean anything!"
"This shows that you have little knowledge." "0" said unhurriedly "You see, in daily life, the temperature is 0 degrees. No temperature? For another example, without my starting point on the ruler, how can there be'1'?"
"No matter how you compare, you can only do the middle number or mantissa, such as 1037, 1307, and you can never lead." 1 "said confidently. Hearing this, "0" said more confidently: "This is impossible, such as 0. 1.
Seeing that the fat man "0" and the thin man "1" both blushed, no one would let anyone, and the other people watching were very anxious. At this time, "9" had a brainwave and made a pause gesture: "Don't argue, both of you. Look at you, which number is better than me,'1'and' 0'? " This ... "Fat man" 0 "and thin man" 1 "are speechless. At this time, "9" said calmly: "1" and "0". In fact, as long as you stand together, aren't you older than me? "1" and "0" looked at each other, and it took a while to scratch their heads and laugh. "That's right! The power of unity is the most important thing! " "No.9 said seriously.
6. Math fairy tales are 200 words long.
Once upon a time, at the seaside, there was a clever boy named Baby Watermelon. He is very clever. There was a boatman named Zhou Ba Sakata, who wanted to occupy the jujube wooden boat of Watermelon Quanwa's house, so he took his servants to the door of Watermelon's house, and the servants shouted:
"Watermelon baby, my master heard that you are smart and asked you to help divide the property and divide it. I will give you 20 taels of silver. If the score is not good, your boat will belong to the owner. Master's 19 boat docked by the river and will be distributed to three young masters. strockle
Leaves, divided into half; Second young master,1; Master, 1 5 points. This ship can't be divided and cut. How's it going? "Baby watermelon blinked and said," Well, add my boat. Plus my boat,
Article 1 * * 20. Gentlemen, half,10; Second young master, divided into 1, divided into 5; Master, 1 in 5, 4. The other one is my own. "Now, week bully day had to obediently took out 20.
Two silver coins
7. Math fairy tale composition 400 words.
The sixty-fourth chapter of Tao Te Ching says: "Hemu is born in a millimeter; The nine-story platform starts from the foundation soil; A journey of a thousand miles begins with a single step. Learning mathematics is like a journey of a thousand miles, and learning mathematics well is like the first step of a journey of a thousand miles.
The first step-hope. Where is the puzzle of mathematics? After seeing that confusion, sort out all the knowledge points and common mistakes in order to find the law.
The second step-smell. After knowing where you are prone to lose points, you can solve such problems in new ways when you encounter such problems again in other places.
Three aspects of learning-problems. When you walk, you must learn from others and ask bravely.
The last but also the most important step-cutting. I suggest you find yourself an excellent tutor when you encounter bottlenecks in your study.