First grade primary school mathematics story (3-5)

1. When did the snail climb up the well? A snail accidentally fell into a dry well. It lay down at the bottom of the well and cried. A toad crawled over and said angrily to the snail: "Don't cry, little brother! It's useless to cry. The wall of this well is too high. If you fall here, you will have to live here. I have lived here for many years. "I haven't seen the sun for a long time, let alone want to eat swan meat!" The snail looked at the old and ugly toad and thought to himself: "The world outside the well is so beautiful, I will never live like it again!" It's dark and cold at the bottom of the well!" The snail said to the toad, "Uncle Legg, I must climb up!" "Hahaha... What a joke! It's 10 meters deep. How can you climb up at such a young age and carrying such a heavy shell? "I'm not afraid of hardship or tiredness. I can always crawl out after climbing a little bit every day!" The next day, the snail was eaten! After being full and drinking enough water, I started to climb up the well wall. It kept climbing, and finally climbed 5 meters in the evening. The snail was very happy and thought: "At this speed, I will be able to climb up tomorrow evening." Thinking about it, it fell asleep unknowingly. In the morning, the snail was awakened by a snoring sound. At first glance, it turned out that the leprous uncle was still sleeping. It was startled: "Why am I so close to the bottom of the well?" It turned out that the snail slid down 4 meters from the well wall after falling asleep. The snail sighed, gritted his teeth and began to climb up again. In the evening, I climbed another 5 meters, but at night the snail slid down another 4 meters. Climbing and crawling, the snail finally climbed onto the well platform. Can you guess how many days it takes the snail to climb up the well platform?

2. Once upon a time, there was a large landowner named Guyimu who hired a long-term worker named Zac and promised to pay him the wages of a cow every year. At the end of the year, Guyimu said to Zach, your wages are with me and you can do big things in the future. Honest Zach agreed. Fast forward 19 years. Zach is old and weak, and the big landowner Guyimu wants to fire him. One day, Guyimu called Zach over and said, "You have worked in my house for 19 years. Now I will give you 19 pounds of oil. You can leave!" Zach became anxious when he heard this and said, "Master, what did you say?" How come the annual salary for a cow has turned into a pound of oil!" Gu Yimu glared and roared: "You heard wrong, will I still rely on you?" There is no point in saying that? He said and kicked him out of the door.

Zach carried 19 pounds of oil and sat on the roadside blankly. At this time, I happened to see Afanti coming over on a little donkey. Zach quickly told Afanti about this and asked him to help calculate his wages. Afanti thought for a moment and said, OK, I'll go to Guyimu's house with you to judge. "

Guyimu was drinking at home. Suddenly Afanti and Zach walked in. Guyimu felt a little panicked and said with a smile on his face: "Mr. Afanti has arrived, what are you doing? Afanti said: "Zach wants to start a small business, so he came here to borrow three taels of silver, and I will be my guarantee. I don't know if the master is willing." When Gu Yimu heard this, he felt relieved and said: "Of course it is possible with Mr. Afanti as a guarantee." Zach is an honest man, and the annual interest rate should be equal to the capital and profit. "So, three pairs of six sides wrote the IOU. Just as Gu Yimu was going to get the money, Afanti stopped him and said: "You have to be fair when doing things. Lending you money is for both the principal and the benefit. So, Afanti A pound of oil is stored with you every year, and it should be beneficial to both the capital and the other. "Gu Yimu rolled his eyes and thought to himself how much interest the nineteen kilograms of oil would earn, maybe a few hundred kilograms of oil at most! Then he said: "Okay, for Mr. Afanti's sake, if you figure out how much it is, I'll take it. Just pay. ”

So, Afanti took the abacus and said: In the first year, the salary is 1 catty, in the second year the interest is 1 catty, the processing money is 1 catty, and the payment is 3 catties, and in the third year it is 7 Jin, it was 15 pounds in the fourth year... In less than a moment, the result was calculated, and the big landowner Gu Yimu was stunned. Finally, he begged: "Mr. Afanti, please say something good to Zac, I am willing." Pay him back the wages of his 19 cows! ”

Zach received the wages for 19 cows, and of course he would not borrow three taels of silver.

My children, what is the principal and interest account for one pound of oil per year in 19 years according to Gu Yimu’s calculation of capital versus profit?

3. Identify the direction

Get up in the morning and face the sun, and use your brain to think about it;

The front is east and the back is west, the left is north and the right is South;

Stretch out your left and right hands, and remember the southeast and northwest;

The map directions are stipulated, up is north and down is south;

Left is To the west is to the right and to the east are the children. Children must distinguish clearly.

4. Interesting math questions for the first grade of primary school 1. Three rabbits, the black rabbit, the rabbit and the white rabbit, are racing. The black rabbit said: "I am not the fastest, but I am faster than the white rabbit." Please tell me, who runs the fastest? Who runs the slowest?

( ) Runs the fastest , ( ) runs the slowest.

2. Three children compare their sizes. Based on the following three sentences, please guess who is the biggest? Who is the smallest? (1) Fangfang is 3 years older than Yangyang; (2) Yanyan is 1 year younger than Fangfang; (3) Yanyan is 2 years older than Yangyang. ( ) is the largest and ( ) is the smallest.

3. Based on the following three sentences, guess the ages of the three teachers.

(1) Teacher Wang said: "I am younger than Teacher Li." (2) Teacher Zhang said: "I am older than Teacher Wang."

(3) Teacher Li said : "I am younger than Teacher Zhang." The oldest is ( ) and the youngest is ( ).

4. Guangming Kindergarten has three classes. Based on the following three sentences, please guess which class has the least number of people? Which class has the most people? (1) The middle class has fewer people than the small class; (2) The middle class has fewer people than the large class; (3) The large class has more people than the small class. ( ) has the smallest number of people, and ( ) has the largest number of people.

5. Three classmates compare their heights. A says: I am taller than B; B says: I am shorter than C; C: says I am taller than A. ( ) is the tallest and ( ) is the shortest.

6. Four children compare their weight. A is heavier than B, B is lighter than C, C is heavier than A, and D is the heaviest.

The weight order of these four children is: ( )> ( ) > ( ) > ( ).

7. Xiaoqing, Xiaohong, Xiaolin and Xiaoqiang are taller and shorter than each other.

Xiaoqing said that I am taller than Xiaohong; Xiaolin said that Xiaoqiang is shorter than Xiaohong; Xiaoqiang said: Xiaolin is shorter than me.

Please write the names in order from tallest to shortest: ( ), ( ), ( ), ( ).

8. There are four wooden boxes. The blue box is larger than the yellow box; the blue box is smaller than the black box; the black box is smaller than the red box. Please line up the boxes from largest to smallest.

( ) box, ( ) box, ( ) box, ( ) box.

9. Zhang, Huang and Li are the last names of the three children respectively. Based on the following three sentences, please guess what the surnames of the three children are?

(1) A is not named Zhang; (2) Huang is not C; (3) A and B are having sex Listen to a child named Li singing.

A’s surname ( ), B’s surname ( ), and C’s surname ( ).

10. Teacher Zhang gave each of the three children a red, white and blue balloon. Based on the following three sentences, please guess what color balloons they were assigned?

(1) Xiaochun said: "The balloons I assigned are not blue."

(2) Xiaoyu said: "The one I got was not a white balloon."

(3) Xiaohua said: "I saw Teacher Zhang giving the blue balloon and the red balloon to the two people above. Little kid. "Little Equinox arrives ( ) balloon. Xiaoyu was assigned ( ) balloon. Xiaohua was assigned ( ) balloon. 11. Three children A, B and C are racing. The person who won the first place was not A, and the person who won the second place was not C. B saw that both A and C reached the finish line in front of him.

A won the ( ) place, B won the ( ) place, and C won the ( ) place.

12． Three athletes A, B, and C all won prizes at a sports meeting. Their respective sports are basketball, volleyball and football. Now we know that: (1) A is taller than the volleyball player; (2) The football player is shorter than both C and the basketball player.

Think about it:

A is ( ) athlete, B is ( ) athlete, and C is ( ) athlete.

13. Dad bought 3 rubber balls, two red and one yellow. Both brother and sister want it. Dad asked them to sit back to back. Dad stuffed a red ball for his brother, a yellow ball for his sister, and hid the remaining ball behind his back. Dad asked them to guess the color of the ball in his hand, and whoever guessed correctly would give the ball to him. So, who can definitely guess it right? ( ).

14. The three children, Xiaofei, Xiaonan, and Xiaoyang, wearing red, yellow, and blue hats respectively, lined up and walked forward without looking back. Xiao Nan can see a red hat and a yellow hat, Xiao Fei can only see a yellow hat, and Xiao Yang can't see a hat at all. Do you know who is walking first? Who is walking second? Who is the last one? What color hats are they wearing? ( ) walks first, wearing ( ) hat ; ( ) walked second, wearing ( ) hat; ( ) walked last, wearing ( ) hat;

15. Three children lined up to play games after class, and they *** How many different arrangements can there be? 16. A group of children queue up to play a game. The children in the queue are 3rd from front to back and 5th from back to front. How many children are playing the game? 17. Fill in the numbers according to the rules:

0, 1, 3, 6, 10, ( ), ( ).

18. Xiao Ming’s family lives on the 5th floor. How many flights of stairs did Xiao Ming climb when he returned home from the first floor?

19. The little monkey and the little rabbit went to pick peaches. The little monkey picked 15 peaches. When the little monkey gave 3 of his peaches to the little rabbit, they both had the same number of peaches. You Do you know how many peaches the little rabbit picked?

20. When Xiao Ming came home, he saw his father sawing a steel pipe. Xiao Ming asked his father how long it would take to saw, and his father said to Xiao Ming: "It takes 10 minutes to saw one section, and it takes 5 minutes to saw a steel pipe." Section." And asked Xiao Ming to guess how long *** will take. Can you help?

21. My mother bought 18 pencils for my sister and 10 pencils for my brother. How many pencils did my sister give to my brother? Do they have the same number of pencils?