Here are some ways to solve the problem of poor math grades in first grade: ** 1. Parents 'participation ** 1. ** Guide revision and preparation ** - The first graders did not know how to review and prepare for the lessons. Parents had to take time out every day to guide their children to develop this habit. Through revision, one could deepen their understanding and memory of the day's learning content. Previewing could make the child mentally prepared for the next day's learning. 2. ** Supervising the recitation of the pithy formula ** - Parents should supervise their children to memorize the addition and deduction table every day. Before the child reads, you should do a good job of guiding him. You can agree with the child on the number of times or time to recite. For example, read it once or twice a day. After the child is familiar with reciting, you can review it once a week. Pay attention to the review method to avoid the child's rebellious emotions. 3. ** Cultivate sensitivity to numbers ** - Parents could play some number games with their children before going to bed, such as positive and negative numbers. This would give children a stronger understanding of the order of numbers. They could also play games with shorthand numbers, from simple license plate numbers to mobile phone numbers, bank card numbers, etc., from easy to difficult. This would not only make the child not resist, but also cultivate his sensitivity and memory ability for numbers. 4. ** encourage children to build confidence ** - Parents should constantly encourage their children and subconsciously influence their children to make them feel that they have the ability to learn mathematics. For example, if a child did a question correctly, he would be given affirmation. If he did a difficult question correctly, he would be encouraged. He could also use examples of students with good grades who did a careless mistake and the child did it correctly to motivate the child. ** 2. Learning Method ** 1. ** Solid Basic Knowledge ** - Mathematics was a subject that progressed step by step. The basic knowledge of the first grade, such as addition and substitution, multiplication and division, and the concepts and techniques of scores, had to be mastered. If the foundation is not solid enough, it is necessary to find problems as soon as possible and make plans to strengthen the study, through repeated practice to consolidate. 2. ** Practice more ** - Practice was the key to mastering mathematics. He had to do more math exercises, especially applied questions. Through practice and application, one could better understand and remember mathematical concepts and methods. 3. ** Master the question type method ** - To master the first grade mathematics application questions must be tested, such as the question mark on the top with substitution, the question mark on the bottom with addition; The diagonal line in the picture was crossed out with substitution, and the virtual circle was used for substitution; The total and original were added, and the remaining and were used for substitution; How much more, how much less, more than who, less than who also used substitution. ** 3. Seeking help ** 1. ** Using teaching resources ** - He could choose suitable supplementary teaching materials, such as materials that included the 190 compulsory test points of primary school and the video lectures of famous teachers. He did not need to sign up for cram school or do a lot of questions. He could let the child go from zero foundation to advanced, and gradually master the difficult points. 2. ** Ask others for advice ** - When the child is confused, he can ask the teacher questions and discuss with his classmates. If parents had difficulties in tutoring, they could also seek the help of teachers. For example, the teachers in Tutu Class could play a role in guiding their children to consolidate their basic knowledge. Read more exciting novels for free
The following are some of the key questions in the first volume of the fourth grade primary school mathematics: ** 1. Unit Conversion ** 1. ** Conversion of length units ** - For example, 1 kilometer = 1000 meters, 1 meter = 10 decimeters, 1 decimeter = 10 centimeters, and 1 centimeter = 10 millimeters. When solving problems involving different units of length, accurate conversion was needed. For example, if one wanted to find the area of a highway that was 300 kilometers long and 50 meters wide, one would first convert 300 kilometers into 300000 meters, then calculate the area as 300000 x 50 = 15000000 square meters, and finally convert it into 1500 hectares. 2. ** Area Unit Conversion ** - 1 square meter = 100 square decimeters, 1 square decimeter = 100 square centimeters, 1 square meter = 10000 square centimeters, 1 hectares = 10000 square meters, 1 square kilometer = 100 hectares = 1000000 square meters. For example, to calculate the increase in the area of a square nursery with an area of 1 ha (100 meters on each side), one needed to first calculate the original area and the area after the change before calculating the difference. ** 2. Relationship between numbers ** 1. ** Unit price, quantity and total price ** - The relationship is unit price × quantity = total price, total price × unit price = quantity, total price × quantity = unit price. For example, in a shopping scenario, the third quantity could be calculated based on the two known quantities. 2. ** Speed, Time and Distance ** - Distance/time = speed, distance/speed = time, speed × time = distance. For example, if you know that Little Red's journey from home to school is 845 meters and takes 13 minutes, you can find out that her speed is 845/13 = 65 meters/minute. Then, you can find the time needed according to the distance from home to the Children's Palace. ** 3. Geometry-related figures ** 1. ** Rectangle and Square Area ** - Rectangle area = length x width, square area = side length x side length. For example, if a square lawn is known to have a side length of 18 meters, the area can be calculated to be 18×18 = 324 square meters, and then the width of the rectangular lawn can be calculated according to the area of the rectangular lawn (when the length is known to be 36 meters, the width is 324/36 = 9 meters). ** 4. Multiplication and Division ** 1. ** Multiplicity Problem ** - For example, the two containers A and B could hold a total of 900 milliliters of water. The capacity of the second container was 8 times that of the first container. If the capacity of the first container was regarded as 1 portion, and the capacity of the second container was regarded as 8 portions, a total of 9 portions, the capacity of the first container could be calculated as 900/9 = 100 milliliters, and the capacity of the second container was 100×8 = 800 milliliters. 2. ** Solve the problem while making a mistake ** - For example, when calculating the division, you mistakenly wrote the quotient 23 as 32, resulting in a quotient of 18 and a remainder of 12. First, based on the wrong division, quotient, and remainder, the dividends were calculated as 18×32 + 12 = 588, and then the correct result was 588 × 23 = 25…13. <a href="/?from=ask_words" style="color:red" target="_blank">Read more exciting novels for free</a>
The answers to the third-year exam of the 10th Cross-Strait Youth (Mathematics) Cultural Exchange Activity in 2021 are as follows: [Answer for the first test: The answers for questions 1 to 16 are 9, 26, 5, 4, 10, 7, 11, 2, 30, 10, 16, B, 6, 12, 20, 24, 14, 10, 4, 48, 14, 10, 51, 6, 321.] Answer for the second test: 1、(45000 - 2000 + 7000)/(4 + 1)= 10000 (square meters), total construction area of Century Pavilion 1000 + 2000 = 12000 (square meters), total construction area of Renaissance Pavilion 45000 - 12000 = 33000 (square meters), 2,500/10 = 50 (sections), parasol tree: (50 + 1) ×2 = 102 (trees), white Magnolia trees: 50×2 = 100 (trees), a total of 102 + 100 = 202 (trees). <a href="/?from=ask_words" style="color:red" target="_blank">Read more exciting novels for free</a>
You can try the following ways to check the results of the second grade of the primary school in Shen Zhen: 1. School Notice: Ask your child's primary school. The school will usually inform the parents or students of the results through paper or electronic forms after the final exam. 2. The school's official website or educational administration system: Some schools will provide parents or students with the ability to check their results on their official website or educational administration system. You can log in to the platform and follow the instructions to check. 3. Parents or Class Groups: Join the parent or class groups related to the child's class or school, and get information about the final results by communicating with other parents. 4. Contact the class teacher or the academic affairs office: If the above methods cannot obtain the result information, you can directly contact the class teacher of the child's class or the school's academic affairs office to inquire about the specific method of checking the results. It should be noted that different schools may have different methods and policies for checking results. It is best to follow the guidelines provided by the school. <a href="/?from=ask_words" style="color:red" target="_blank">Read more exciting novels for free</a>
According to the information provided, there was a mathematics test paper for the sixth grade of the 2021 - 2022 academic year in Chenzhou City, but there was no detailed description of the content of the test paper. There was also a section of Chenzhou City's sixth-grade primary school mathematics final exam paper, which included topics such as scale, clock angle, fraction calculation, echelon area, comparison of the remaining length of the rope, cube expansion diagram, travel problems, positive and negative proportional relations, price changes, and other knowledge points. If he wanted to have a more comprehensive understanding of the mathematics content of the sixth grade of Chenzhou Primary School, this information was far from enough. <a href="/?from=ask_words" style="color:red" target="_blank">Read more exciting novels for free</a>
The following is an example of a third-grade elementary school math lesson plan that uses the multiplication method to solve a problem: ** 1. Teaching objectives ** 1. Students were asked to use the numerical relationship of the continuous multiplication problem to list out comprehensive formulas to solve practical problems through operation and observation in specific problem situations, so as to cultivate the ability to solve practical problems. 2. Students will experience the process of discovering, proposing, analyzing, and solving problems, experience the variety of methods, and cultivate the awareness of observing and thinking about problems from multiple perspectives. 3. Cultivate the students 'basic abstract ability, hands-on practical ability, application awareness, and innovation awareness, and accumulate mathematical activity experience. ** 2. Important and Difficult Points in Teaching ** 1. ** Main point ** - Master step-by-step or comprehensive formulas to solve practical problems related to continuous multiplication. 2. ** Difficulty ** - He tried to think about the problem from different angles and seek different solutions. ** 3. Teaching preparation ** 1. Teacher's preparation: Coursewares, object projector. 2. Students prepare: learning tools, discs, homework papers. ** 4. Teaching process ** #(I) Scenery Introduction 1. ** Create a scenario ** - Show the picture in the information window 1 on page 40 of the textbook (for example, the picture of the green ecological park). Ask: Students, have you been to the green ecological park? Today, I'll take you to take a look. 2. ** Introduction ** - He guided the students to observe the blooming flowers and pointed out the mathematical problems in today's class to explore the green ecological garden. This scene could stimulate the students 'interest in exploring. #(II) Exploring new knowledge 1. ** Observe the scene map, find mathematical information, and ask questions ** - The teacher pointed out that there were pink, yellow, red, and other colors of flowers in the picture, and there were equally many flowers of all three colors, and asked what "equally many" meant (the same number and the same arrangement). - The students were guided to carefully observe the hidden mathematical information in the picture. For example, there were five rows of each color and eight pots in each row. - Based on this information, the students were guided to ask mathematical questions, such as "How many pots of flowers are there in total?" The class also showed the complete examples and asked the students to read the questions. 2. ** Independent analysis, problem solving ** - How many pots of flowers are there in total? This question was used as an example for teaching. - ** Intuitional operation, understanding the relationship between numbers ** - In order to facilitate the analysis, the students were asked to replace the flowers with small round pieces. The three groups of small round pieces represented the flowers of three colors. The students were guided to determine what to calculate first and then what to calculate on the basis of hands-on operation. - ** Exchange and discuss, show the algorithm ** - Invite the students who have the answers to come on stage and use the hands-on process to explain their thoughts. - ** Step-by-step answers ** - First, calculate how many pots there are for each color. The formula is: 5×8 = 40 pots. This step was to multiply the number of pots in each row by the number of rows to obtain the number of pots of a color. - Then, he calculated the total number of pots of flowers of the three colors. The formula was: 40×3 = 120 (pots). This was the total number of pots obtained by multiplying the number of pots of flowers of a color by the type of color. - ** Comprehensive Formula ** - The general formula was: 5×8×3 = 40×3 = 120 (pots). Here, the product of 5×8 was calculated from left to right, then multiplied by 3. - Students could also be guided to think from another perspective. First, find out how many pots there were in a row of flowers of three colors. The formula was: 8×3 = 24 (pots). Then, calculate how many pots there were in total. The formula was: 24×5 = 120 (pots). The comprehensive formula was: 8×3×5 = 24×5 = 120 (pots). #(3) Consolidating Practice 1. For example, in the stamp album, there were three rows of stamps on each page, and each row had four stamps. How many stamps were there in total on the three pages? Let the students do it independently and exchange ideas. 2. The students were given information such as 4 yuan for each shuttlecock and 6 shuttlecocks in a box. #(IV) Class summary 1. Guide the students to review what they learned today, that is, how to solve problems with continuous multiplication. 2. He emphasized that he could make better use of successive multiplication to solve problems in life. <a href="/?from=ask_words" style="color:red" target="_blank">Read more exciting novels for free</a>
The following is an example of a third-grade elementary school mathematics practice report: ** I. Practice Thesis ** " Mathematics in Life: The Mystery of Time " ** 2. Purpose of Practice ** Through a series of time-related practical activities, the third grade students would have a deep understanding of the application of mathematics in daily life, improve their interest in mathematics, practical ability, and grasp the concept of time. At the same time, they would cultivate their observation, analysis, and problem solving abilities. ** 3. Practice background ** In the mathematics curriculum of the third grade of primary school, time-related knowledge was an important component, such as year, month, day, 24-hour timing method, etc. However, these abstract concepts might be difficult for students to understand. They needed to deepen their understanding through practical operations and life experiences. ** 4. Practice content and process ** 1. ** One day of my time to produce tabloids ** - After the students learned the 24-hour Timekeeping Method, they produced a time tabloid with the theme of "My Day". They recorded the corresponding time of each activity from waking up to sleeping, and used a paintbrush to describe the colorful life of the day. For example, waking up at 7:00 am, attending classes from 8:00 am to 12:00 am, having lunch at 12:30 am, and so on. - In this process, the students needed to accurately use the 24-hour timing method to indicate the time, and reasonably arrange the activities of different time periods in the tabloids. This not only consolidated their knowledge of timing, but also allowed them to become observers of life and think about how to arrange their time reasonably. 2. ** Food shelf life survey ** - The students turned into little food investigators and conducted safety investigations on the food at home. He checked the production date and shelf life of the food, and then judged whether the food had expired. For example, by calculating that the production date plus the shelf life had not reached the date of the day, so it did not expire. - This activity involved simple date calculations, allowing students to combine mathematics knowledge with food safety issues in their family lives and experience the importance of mathematics in real life. 3. ** The mystery of the calendar ** - The students made a birthday calendar, and in the process, they discovered small patterns and secrets about time. For example, some students realized that the first day of each month was not necessarily a Monday, and the calendar records began from Sunday. - They also delved into the calendar to observe which months had the same "days of the week". They made bold guesses and verified their ideas through mathematical calculations. This would help students understand the relationship between year, month, and day and improve their mathematical thinking ability. ** 5. Practice results and gains ** 1. ** Knowledge and Skills ** - The students were more familiar with the 24-hour timekeeping method and could accurately switch between the ordinary timekeeping method and the 24-hour timekeeping method. - He had a deeper understanding of the concept of year, month, and day, including the number of days in the big month, small month, ordinary year, and leap year, as well as the relationship between the days of different months and the week. - He learned simple date calculation, such as calculating the shelf life of food and determining the order between two dates. 2. ** Ability and Quality ** - Through the production of time tabloids and a calendar, the students 'hands-on ability was trained, and they were able to display their mathematical thinking results in the form of charts. - In the process of investigating the shelf life of food and exploring the rules of the calendar, the students 'observation, analysis, and problem solving skills were improved. They learned to discover mathematical problems in their lives and use what they learned to solve them. - The entire practical activity stimulated the students 'interest in mathematics learning. It made them feel that mathematics was not just boring numbers and formulas, but a subject that was closely related to life and full of fun. 3. ** Emotional attitude ** - The students strengthened their concept of time in the process of practice, understood the preciousness of time, and developed a good habit of cherishing time. For example, through the creation of the "My Day" tabloid, they realized the importance of managing their time properly. - When students successfully discovered the pattern in the calendar or correctly judged whether the food had expired, they would gain a sense of accomplishment, which would enhance their self-confidence and increase their enthusiasm for mathematics learning. ** 6. Practice summary and reflection ** 1. ** Success ** - The content of the practical activities was closely related to the reality of life, starting from the familiar life scenes of the students, such as the daily life schedule, family food, etc. This greatly increased the participation and enthusiasm of the students. - Various forms of practice, such as producing tabloids, conducting investigations, and exploring laws, met the needs of students with different learning styles, allowing each student to find their own interest and space to develop in practice. - Through practical activities, the students 'mastery and application of mathematical knowledge were effectively improved, and the expected teaching goal was achieved. 2. ** Inadequacies and improvement measures ** - In practical activities, some students might encounter difficulties in exploring more complicated tasks such as the calendar due to their weak foundation or poor thinking ability. In the future, he could provide more guidance and individual tutoring for these students. For example, he could design layered tasks so that each student could gain something within their own ability. - Although practical activities focused on students 'independent exploration, there were relatively few opportunities for group cooperation. In the future activities, some tasks that required group cooperation could be added, such as making the annual calendar in groups, so that students could learn from each other and improve their teamwork and communication skills. <a href="/?from=ask_words" style="color:red" target="_blank">Read more exciting novels for free</a>
The following are a few cube-drawing methods suitable for first graders: ** 1. Simple outline drawing ** 1. First, draw a square. This is one of the faces of the cube. 2. A diagonal line was drawn from the top right corner of the square to the top right, a diagonal line from the top left corner to the top left, a diagonal line from the bottom right corner to the bottom right, and a diagonal line from the bottom left corner to the bottom left. The lengths of these four diagonal lines were roughly the same. 3. Connecting the corresponding ends of these four diagonal lines formed a three-dimensional cube. ** 2. Simple strokes ** 1. First, draw a hexagon, then write a " y ", and the cube will be drawn. 2. Or he could write the word "Tian" and connect them together to draw a multi-layered cube. <a href="/?from=ask_words" style="color:red" target="_blank">Read more exciting novels for free</a>
1. A car traveled 180 kilometers in three hours. At this speed, how many kilometers could it travel in five hours? 2. The school purchased stationery at two yuan per pencil and five yuan per notebook. How much did he spend on 10 pens and 8 notebooks? 3. A rectangular flower bed was 12 meters long and 8 meters wide. How many meters was the circumference of this flower bed? 4. Xiao Ming had 120 candies. He wanted to distribute them equally among 30 children. How many candies could each child get? 5. There were 50 apple trees in the orchard. The number of pear trees was three times that of the apple trees. How many pear trees were there? 6. The worker uncle wants to build a 500-meter-long road. He has already built 200 meters. The rest needs to be completed in 5 days. How many meters do you need to build on average every day? 7. A barrel of oil weighed 100kg, and 40kg was used. The remaining oil was stored in 5 bottles. How many kilograms was stored in each bottle? 8. There were 300 chickens in the farm, and the number of ducks was 50 fewer than the chickens. How many ducks were there? 9. An engineering team could repair 80 meters of road every day. How many days would it take to repair a 640-meter-long road? 10. A book had a total of 240 pages. Xiaoming read 15 pages a day. After reading for 10 days, how many pages were left? <a href="/?from=ask_words" style="color:red" target="_blank">Read more exciting novels for free</a>
If a sixth grader wanted to make a comeback in mathematics, they could start from the following aspects: 1. [Find learning difficulties]: Help the child identify the difficult points in math learning, such as not understanding a certain knowledge point or making mistakes in certain questions. 2. ** Stimulate learning interest **: Make mathematics learning interesting and increase children's enthusiasm for mathematics. 3. [Master the scientific method: Learning methods have a great impact on learning results. Finding a suitable learning method can improve learning efficiency.] 4. ** Practice more **: Mathematics requires constant practice. Through a lot of practice, you can familiarize yourself with various types of questions and improve your ability to solve them. 5. ** Enhancing communication **: Maintain good communication with the child and provide timely help and support. 6. [Master Basic Knowledge: Mathematics is a gradual subject. You must firmly grasp basic knowledge such as addition, multiplication, division, scores, and percentage.] 7. [Understand the Concept Connotation]: You can't just memorize formulas and algorithms, you have to understand the concepts behind them. 8. ** Ask others actively **: If you encounter difficulties on a certain problem, actively ask your teachers and classmates for advice. 9. ** Using assistive tools **: Modern technology has provided many convenient tools for mathematics learning that can be fully utilized. <a href="/?from=ask_words" style="color:red" target="_blank">Read more exciting novels for free</a>
There are many types of problems to solve in the first grade of primary school. The following are some common types: ** 1. Seeking the Total ** 1. For example, regarding the addition of the number of objects: 28 butterflies flew away from the flowers, and another 9 flew away. How many butterflies flew away twice? 2. [Adding up the number of items owned by the character involved: There are 39 horses on the horse track, and another 50 horses have arrived. How many horses are there on the horse track now?] 3. Tree planting problem: There are 40 trees on both sides of a road. How many trees are planted in total? 4. Little Ming planted five flowers, and Little Light and Little Red planted the same number of flowers as Little Ming. How many flowers did they plant? 5. Add the number of boys and girls in the class to find the total number: There are 34 male students and 20 female students in Class 2 of Year 1. How many students are there in Class 2 of Year 1? 6. The total calculation in the shopping scenario: Mom wants to buy a piece of clothing. She brought 68 yuan and is still 7 yuan short. How much does this dress cost? ** 2. Find a large number ** 1. Comparing the number of storybooks between the two: Xiao Dong has 15 storybooks, Xiao Dong has 8 fewer than Xiao Lin. How many storybooks does Xiao Lin have? 2. Price comparison: A storybook is 8 yuan, a dictionary is 5 yuan more expensive than a storybook, how much is a dictionary? 3. Comparing the number of flowers: 27 red flowers, 8 more yellow flowers than red flowers, how many yellow flowers? 4. Comparing the number of stamps between the two: Xiaoming has 60 stamps, Xiaodong has 10 more than Xiaoming. How many stamps does Xiaodong have? 5. Number comparison: One number is 70, another number is 15 more than it, what is the other number? 6. Comparing the number of envelopes made by the two of them, Little Light made 20 envelopes. Little Liang made 6 more than Little Light. How many envelopes did Little Liang make? ** 3. Seeking a few categories ** 1. The calculation of the remaining pages of the book: a book has 30 pages, Xiao Lin has read 9 pages, how many pages are left? 2. [Change for shopping: Lele has 10 yuan. She bought an extra-cursory book for 7 yuan. How much is the change?] 3. [Calculating the number of fruits: Xiao Hong has 13 apples and pears. There are 4 apples. How many pears do you have?] 4. The remaining number of cars: There are 13 cars in the bus terminal, three have been driven away, how many are left? 5. The number of books on the bookshelf changed: There were 36 books on the bookshelf, some were taken away, and there were 9 books on the bookshelf. How many books were taken away? 6. Calculating the number of paper cranes in the two groups: Group One and Group Two had folded a total of 58 paper cranes, of which Group Two had folded 30 cranes. How many cranes did Group One fold? ** 4. Find the decimals ** 1. Number comparison: One number is 60, the other number is 20 less than it, what is the other number? 2. [Flower number comparison: Little Red folded 50 flowers, Little Green folded 20 fewer flowers than Little Red, how many flowers did Little Green fold?] 3. Comparing the number of animals: There were 30 roosters in the feeding group. There were 8 more roosters than hens. How many hens were there? 4. Number comparison: What is the number that is 8 less than 75? 5. Comparing the price of clothes and pants: a shirt is 80 yuan, a pair of pants is 20 yuan cheaper than a shirt, how much is a pair of pants? ** 5. Find the difference ** 1. Comparing the number of flowers drawn: Little Green drew 17 flowers twice. The first time, it drew 9 flowers. How many flowers did the second time draw less than the first time? 2. Comparing the number of pine cones collected: The little gray rabbit picked 17 pine cones, while the little white rabbit picked 8. How many more pine cones did the little gray rabbit pick than the little white rabbit? 3. Comparing the number of boxes of strawberries: Xiaoqing picked 13 boxes of strawberries in the morning and 8 boxes in the afternoon. How many more boxes did she pick in the morning than in the afternoon? 4. Comparing the number of red flowers folded: Xiao Dong folded 30 red flowers, Xiao Qing folded 20 red flowers, and Xiao Qing folded as many as Xiao Dong? 5. Comparing the number of pages in the book: An extra-cursory book has 50 pages. Little Light has read 20 pages. How many pages have you read less than the ones you have not read? ** 6. Add category ** 1. [Number of stars: 3 students folded 6 stars each.] How many stars did you fold? 2. Birthday cake distribution: Today is Xiao Ming's birthday. Mom prepared three plates of cake for him, six for each plate. Xiao Ming invited 17 children to share one piece each. Is that enough? 3. Number of logs carried by elephants: Each elephant carried seven logs. How many logs could four elephants carry? 4. The cost of buying a pencil case: 7 yuan for a pencil case. How much would it cost for Xiao Lin to buy 3 pencil cases? 5. [Number of steps: There are 20 steps on each floor. How many steps does Xiaoxiao have to walk from the first floor to the fifth floor?] ** 7. Consecutive deductions ** 1. The question about the box of pears: Mom bought 18 pears, and each box is filled with 5 pears. How many boxes can be filled? 2. [Book binding problem: There are 87 books, and each bundle is 20 books. How many bundles can you bundle?] 3. [Birdie housing problem: 22 birds, 4 birds per nest, how many nests can be filled?] 4. Student riding question: 18 students, every 4 students take a small car, how many cars do you need to prepare? 5. Matchstick triangle problem: How many triangle can 17 matchsticks form? ** 8. Two Method Classes ** 1. [Number of pages left in the storybook: Xiao Hong read an 80-page storybook. On the first day, she read 20 pages. On the second day, she read 30 pages. How many pages did Xiao Hong not read?] 2. There were 28 animals cleaning the house. Four animals were cleaning the floor, six monkeys were cleaning the tables and chairs, and the rest were cleaning the windows. How many animals were cleaning the windows? 3. The number of boxes of milk left in the store: The store originally had 56 boxes of milk. Eight boxes were sold in the morning, and the same number was sold in the afternoon. How many boxes of milk were left in the store? 4. [Remaining amount: Xiaoyu's mother brought 100 yuan, 70 yuan for a shirt and 10 yuan for a scarf in the supermarket. How much money is left?] 5. Comparing the number of red flowers produced: Xiao Lin made 15 red flowers, and Xiao Xiao made 7 red flowers. How many red flowers did Xiao Xiao have to make to be more than Xiao Lin? [9. Extra conditions.(There will be some extra conditions that will interfere with the solution. Students need to identify them.) For example, Little Light made 20 flowers.(There may be situations like comparing the number with other students later, and there may be extra conditions.)] <a href="/?from=ask_words" style="color:red" target="_blank">Read more exciting novels for free</a>