Problem solving training (P4) 1. A washing machine factory plans to produce 540 washing machines in May. In fact, it has finished in half a month. How many more washing machines can be produced in the second half of the month 2.A section of highway is 200 meters long. The first day, the first day, how many meters? (6 points) (P8) 1. The incubation period of the chicken is 21 days. The incubation period of the duck is longer than that of the chicken. How many days does the duck hatch? (4 points) 2. There are 2000 story books in the library. The book of wisdom is the story book. The book of natural science is the book of wisdom. How many are the books of natural science? 3. In the city sports meeting, athletes need 720 number cloths. There are already number cloths in the storeroom. How many more number cloths are enough? 4. Xiaowen read a 240 page story book. She read it on the first day, the rest on the second day, and the rest on the third day. How many pages did she read on the third day? (5 points) 2. The students donated 3600 yuan to hope primary school. The amount of money donated by fifth grade is less than that of sixth grade. The amount of money donated by fourth grade is the total amount of money donated by fifth and sixth grade. How much money did three grades donate to hope primary school? (5 points) (p16) 1. 770 yuan for a suit, of which the price of trousers is for jacket, and how much for jacket and trousers? (6 points) 2,The current price of a full-automatic washing machine is 2860 yuan, which is lower than the original price. How much is the original price? (5 points) 3. For a batch of parts, it will take 16 hours for Master Zhang to work alone, and 20 hours for Master Li to work alone.If two people work together, how many hours can we finish this batch of parts? (6 points) (P19) 1. The volume of water after ice formation has increased. Now there are 132 cubic centimeters of water. What is the volume of ice after ice formation? (P20) 2. In order to afforest the environment, some trees are planted in a community, including parasol tree and pine tree. 24 pine trees are known to be planted, and how many are there in French parasol? (5 points) 3,A bundle of wires, the first one to use it, the second one to use 15 meters, there are still 20 meters left. How many meters does this bundle of wires have? (6 points) 4. Li Rui bought a ballpoint pen and a pen, and shared 12 yuan. The unit price of the ballpoint pen is pen, and how much is the unit price of the ballpoint pen and pen respectively? (solve by equation) (6 points) 5. For one project, it will take 8 days for two teams to cooperate.If the first team is independent, it can be completed in 24 days.How many days will it take to complete if the second team is independent? (6 points) 6. Xiaohong read a book, 65 pages on the first day, the whole book on the second day, and the number of pages on the second day is just more than that on the first day. How many pages does the book have? (p23) 1. Xiaoliang, Xiaoming, Xiaojing and Xiaoke share one electricity meter, and they paid 120 yuan in total last month.If you share the cost of electricity according to the number of lights in each house, how much should each house pay? Please calculate.(4 points) Xiaoliang: 4; Xiaoming: 3; Xiaojing: 5; Xiaoke: 3 2.In an alloy of copper and tin, the mass ratio of copper and tin is 5:3, and the mass of known alloy is 400 kg, then how many kilograms of copper and tin are each? (6 points) 3.The total length of a cuboid is 72 cm, and the ratio of length, width and height is 4:3:2. What is the volume of this cuboid? (6 points) 3. A new batch of books is purchased by the school, and the number of these books is divided into 3:4 to grade 5 and grade 6 students. If grade 5 is known, 120 books will be obtained. How many books are there in total? (6 points) 5.The school plans to afforest a 200 square meter ground, first marking out the total area for planting trees, and the remaining 2:3 for planting flowers and grass. What is the area for planting flowers? (6 points) 6.The ratio of tons of chemical fertilizer in warehouse A and warehouse B is 8:7. If 15 tons are transported from warehouse A to warehouse B, then the ratio of tons of chemical fertilizer in warehouse A and warehouse B is 9:11. How many tons of chemical fertilizer did warehouse a have? (7 points) 7. The teacher of Guangxi Road Primary School led the students of grade six and three classes to plant
Special training for solving problems in the first volume of the sixth grade of Primary Mathematics
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