Mathematical thinking training in grade one 1
1. Sunset and sunset are red. I put the chicken in the cage. Half of the chickens are in cages, five are catching bugs, and the other five are buzzing around me. Children, let's count. How many chickens are there in the cage?
It takes a cat 1 minute to eat a fish. So, how many minutes does it take for 100 cats to eat 100 fish at the same time?
It takes five minutes for five children to eat five apples at once. At this rate, how many minutes will it take for 10 children to eat 10 apples at the same time?
4. Xiaohua has 10 red balloons, and Xiaohua has 8 yellow balloons. Xiaohua exchanged four red balloons for three yellow balloons for Xiaohua. How many balls does Kobanawa Xiaohua have now?
5. 13 children have caught five "chickens" by playing the game of "the eagle catches the chicken". How many didn't get caught?
6. It's getting late. Mom asked Xiao Ming to turn on the light in the room, but the naughty Xiao Ming pulled the switch nine times in a row. Can you tell me whether the light is on or off at this time? What about 20? 100?
Xiaoqing has nine story books, Xiao Xin has seven comic books, and Xiaoqing traded three story books for two comic books of Xiao Xin. How many books do Xiaoqing and Xiao Xin have now?
8. Xiao Min went to the store to buy stationery. She bought 1 pencil with half of the money she brought, the remaining half bought 1 ballpoint pen, and the remaining 1 yuan. How much money does Xiao Min have?
9. Huanhuan and Lele went to buy exercise books. Huanhuan bought four books and Lele bought six. Huanhuan spends less than Lele 1 yuan. How much is the exercise book?
10. Miss Li has 60 yuan money just to buy a football and two volleyballs. If you only buy two volleyballs, there will be 28 yuan left. How much is a football? How much is a volleyball?
1 1. 15 children line up, there are 9 people in front of Xiaodong, how many people are behind Xiaodong?
12. 14 students stand in a team and do exercises. Zhang Bing is the sixth in front, which one is behind?
13. 13 chickens lined up, including a big cock. From the front, it ranks eighth. How many chickens are there in the back?
14. 13 chickens lined up, including a big cock. There are eight chickens in front of it, and how many chickens are there behind it?
15. There are two baskets of apples, the first basket is 25 and the second basket is 19. How many apples are taken from the first basket and put into the second basket? How many apples are there in the two baskets?
16. Xiaoli has 18 pictures. After giving Xiaolong three pictures, they have the same number of pictures. How many pictures does Xiaolong have?
17. After Xiaohua gave Xiao Fang eight stamps, they had the same number of stamps. How many stamps does Xiaohua have more than Xiao Fang?
18. Dalin does more 15 crossing calculations than Xiaolin, Xiaoming does more 6 crossing calculations than Xiaolin, and Dalin does more crossing calculations than Xiaoming.
19. Xiaohua is 6 years old this year. Father said to Xiaohua, "When you grow to 10, I will be 40 years old." How old is dad this year?
20. There is a giraffe in the zoo. Its age is the number obtained by subtracting the smallest two digits from two digits and then subtracting one digit from another. How old is this giraffe?
2 1.6 children divide one bag of apples into two bags. How many apples are there in this bag?
22. A 60-meter-long rope needs 12 meters to jump rope and 30 meters to repair the volleyball net. How many meters is this rope missing?
23. The mall returned 28 TV sets, and sold some of them, leaving 15. How many sets have you sold?
24. Xiaohu learned to write in brush strokes. I wrote six on the first day, and then I wrote three more every day than the day before. How much did he write in four days?
25. Xiaoyun is 8 years old this year. Grandma said, "When you grow to 12, I will be 62 years old." How old is grandma this year?
26. What is the result of subtracting the minimum two digits from the minimum three digits and then subtracting the minimum one digit?
27. Mom has to walk 3 kilometers from home to the factory. Once, she walked 2 kilometers to work, went home to get an important tool, and then went to the factory. How many kilometers did mom walk to work this time?
28. A bus travels from East Station to West Station. If this bus leaves from East Station, after 1 1, will it be at East Station or West Station?
It takes five minutes for a cat to eat a mouse, and five cats eat five mice of the same size at the same time. How many minutes will it take to finish?
30. Xiaoming and Liang Xiao want to buy the same book. Xiao Ming is short of 1 yuan 7 jiao, and Xiao Liang is short of 1 yuan 3 jiao. If they use their money to buy the book together, the money is just right. What's the price of this book? How much money did they each bring?
Senior one mathematics thinking training II
1, my brother has 4 apples, my sister has 3 apples and my brother has 8 apples. After my brother gave it to my brother 1, my brother ate three apples. Who has more apples at this time?
Answer: My sister still has three apples, my brother has 4- 1=3 apples and my brother has 8+ 1-3=6 apples. At this time, my brother has the most apples.
Xiaoming is 6 years old and Xiao Qiang is 4 years old. How old is Xiaoming two years later?
Answer: The age difference remains the same. Xiao Ming has always been better than Xiao 6-4=2 (years old).
3. Students line up to do exercises. There are four people in front of Xiaoming and four people behind him. How many people are there in this team?
A: There are four people before and after Xiao Ming, including Xiao Ming * * * with 4+4+ 1=9 (people).
4. There is a book. Xiaohua read two pages on the first day, and then read two more pages every day than the day before. How many pages did he read on the fourth day?
A: Read 2+2=4 (pages) the next day, 4+2=6 (pages) the third day and 6+2=8 (pages) the fourth day.
5. Students line up to do exercises. From the front, Xiao Ming ranks fourth, from the back, Xiao Ming ranks fifth. How many people are there in this team?
Answer: Xiao Ming calculated it twice. Xiao Ming is counted repeatedly and needs to be subtracted, so this team has 4+5- 1=8 (people).
6. There are eight balls. If every boy sends one, there will be two more. If every girl sends one, there will be two less. How many boys and girls are there?
Answer: 8-2=6 for boys and 8+2= 10 for girls.
7. The teacher gave each of the nine outstanding students a flower and 1 red flower. How many red flowers does the teacher have?
Answer: 9+ 1= 10 (flower)
8. There are five students throwing sandbags. If the teacher gives each person two sandbags, the difference is 1. How many sandbags does the teacher have?
Answer: 2+2+2-1= 9 (pieces)
9. There were nine books just now. Dad bought him five more, and Xiaoming borrowed two. How many books were there just now?
Answer: 9+5-2= 12 (Ben)
10, a group of pupils, in front of Li Ping, there are 8 taller than him and 5 shorter than him. How many pupils are there in this group?
Answer: Don't miss Li Ping when counting. This team has 8+5+ 1= 14 students.
1 1. After Xiao Lin ate eight cookies, Xiao Lin now has four cookies. How many biscuits did Xiao Lin eat?
Answer: 8+4= 12 (block)
12. After my brother gave my brother five pencils, there were six left. How many pencils does my brother have?
Answer: 6+5= 1 1 (branch)
13. There are 8 boys in the Second Squadron, and there are as many girls as boys. How many students are there in the second squadron?
Answer: 8+8= 16 (person)
14, Dahua and Xiaogang each have 10 pictures. After Dahua gave Xiaogang two pictures, how many more did Xiaogang have than Dahua?
A: Dahua has 10-2=8 (Zhang), Xiaogang has 10+2= 12 (Zhang), 12-8=4 (Zhang).
15, Mother Cat gave Xiaobai 5 fish and Xiaohua 4 fish. Xiaobai and Xiaohua * * * ate 6 fish. How many fish did they have?
Answer: 5+4-6=3 (articles)
16, the students borrowed balls from the gym, 9 in class one and 6 in class two. How many balls were lost in the gym?
Answer: 9+6= 15 (only)
17. After taking out five white balls and five flower balls from the bag, there are 10 white balls and five flower balls left. How many white balls and flowers are there in the bag?
Answer: 5+ 10= 15 (pieces) ... white ball 5+5= 10 (pieces) ... flower ball.
18, Fangfang made 14 flowers, Jingjing made 8 flowers, and Fangfang gave Jingjing several flowers. Are there as many flowers as they have?
A: 14-8=6 (flowers), and 6=3+3, so Fangfang gave Jingjing three flowers, as many as two.
19. Mom bought some duck eggs and 12 eggs. I ate eight eggs, and there were as many eggs left as duck eggs. How many eggs did mom buy?
Answer: 12-8=4 (pieces) ... duck eggs, 12+4= 16 (pieces).
20. There are 10 sheep on the grass. Three white goats escaped and seven black goats came. How many sheep are there now?
A: 10-3+7= 14 (only)
Mathematical thinking training in grade 3 of senior one.
1. Xiaohong has 15 books, Xiaodong has 5 books, and Xiaohong gives Xiaodong () books, so there are as many books as two people?
2. One pig for two sheep, one sheep for four rabbits, two sheep for () rabbits, 1 pig for () rabbits.
3. Fill in the figures regularly
( 1) 3、5、7、( ) 9 (2)6、9、 12、 15( )
(3) ( ) 1 1、9、7、( ) (4) 1、8、 1、 10、 1、 12、( )( )
There are two people in front of Linlin and seven people behind him. There are () people in this row.
5. Xiaohong has 5 people on the left and 3 people on the right. There are () people in this line.
6. From the front, Kobayashi is fifth, from the back, Kobayashi is fourth, and ().
7. 1 1 Children stand in a row, counting from the front, Linlin Station is the third, and Dongdong Station is the third. There are () children between Linlin and Dongdong.
8、2+6+ 10= 1+4+5+6=
9. A steel wire is 8 meters long and needs to be cut in 8 small sections () times.
10, the school inserted six colorful flags and a yellow flag between the two colorful flags. The yellow flag has () faces.
1 1. Mom bought some chocolates, and she ate four and nine. Mom bought () chocolate.
12. Daguang and Xiaoming each have 5 pieces of sugar. After Daguang gave Xiaoming 4 yuan, Daguang had () yuan.
13. Xiaohua bought a pencil and an eraser to go to 3 yuan, and Xiaoli bought the same pencil and a pencil sharpener with 5 yuan. The eraser and pencil sharpener were () yuan more expensive.
14. The three children are three years older than Yang Yang, for example 1 year, and two years older than Yang Yang. () Maximum value, () Minimum value
15. My mother is 26 years older than Xiaoli this year. 10 years later, my mother is () years older than Xiaoli.
16. Xiao Fang is 8 years old and her sister 12 years old. Five years later, her sister was () years older than Xiao Fang.
17. The company commander crossed the river with 10 soldiers. Six soldiers have crossed the river, and () others have not.
18. It takes () minutes for a kitten to eat a small fish and five kittens to eat five identical small fish at the same time.
19. Let's celebrate our birthday and invite five children to have dinner together. Everyone has a rice bowl, two people have a vegetable bowl and three people have a soup bowl. Please calculate it. They use () bowls.
Related articles of the first-grade mathematical thinking training problem set;
1. Mathematical thinking training in the first grade of primary school
2. The questions in the first grade interesting math contest are accompanied by answers.
3. Ten interesting math problems in the first grade of primary school
4. One-person teaching version of the first-year mathematics exercises.
5. The fourth grade interesting mathematics logical thinking training questions and answers.
6. The Ministry of Education has compiled 100 thematic exercises for the first grade mathematics in primary schools.
7. The first volume of mathematics olympiad in senior one is equipped with exercises and answers.
8. Special training for first-year math application problems.
9. Training to improve the thinking ability of first-year students