This farm has 3.6 hectares of paddy fields. Last year, it harvested 33.5 tons of early rice and 37.9 tons of late rice. This year, it harvested 22.3 tons of rice per hectare. Compared with last year, how many tons has the output per hectare increased this year?
3. Make a set of furniture with 3.8 cubic meters of wood. After improving the technology, each machine can save 0.4 cubic meters of wood. It turns out that 1600 sets of furniture are all made of wood. How many sets can we make now?
4. Last year, a specialized agricultural household harvested four times as much wheat as corn, and wheat was more than corn 13.5 tons. How many tons of wheat did it harvest last year?
5.A car and B car leave Shanghai for Qingdao at the same time. 18 hours later, car a is 57.6 kilometers behind car b, and car a is 32.5 kilometers per hour. How many kilometers per hour is car b?
6. Young Pioneers collected medicinal materials, and the first group of 7 people collected 5.6 kilograms. According to this calculation, how many kilograms of medicinal materials can 48 people in the class receive?
7. Dongfanghong Farm plans to plant large cherry 10800 hectares in 60 days, and actually plants 20 hectares more than planned every day. According to this calculation, how many days will it take to complete the original plan? How many days in advance?
8. Xiaohong has 50 books. After giving it to Xiaolan, Xiaohong has three more copies than Xiaolan. How many copies does Xiaolan have?
9. A TV factory produced black-and-white TV sets 1500 in June, and produced 270 fewer color TV sets than black-and-white TV sets. How many color TV sets?
10, a parallelogram wheat field with a bottom of 180 meters and a height of 50 meters, if 1200 kilograms of chemical fertilizer is needed per hectare, how many kilograms of chemical fertilizer does this wheat field need?
1 1. bought two pens, handed them over to 15 yuan got them back 1.2 yuan. How much is each pen?
12, Master Wang made a part in 14 hours. After improving the technology, it took 2 hours less than before. How many parts can he make now in the original time of 60 parts?
13. A parallelogram wheat field with a bottom of 30.5 meters and a height of 83 meters. If you harvest 0.7 kilograms of wheat per square meter, how many kilograms of wheat can you harvest in this wheat field?
14. The bookstore bought 2400 books for teenagers, sold them for 5 days, and there were 600 books left. How many books are sold on average every day?
15, the school gymnastics team has 120 people, twice as many as the football team. How many people are there in the football team? (Equation, Arithmetic)
16. The section of a canal is trapezoidal, with an area of 2.52 square meters, a width of 1.4 meters at the bottom, a width of 2.8 meters at the mouth and a depth of several meters.
17, a bus and a truck left the station in the opposite direction at the same time and traveled for 2.5 hours. The distance between the two cars is 3 12.5 kilometers, and the speed of the truck is 60 kilometers per hour. How many kilometers does this bus travel per hour?
18, machinery factory 15 days production 195 machines, actually producing 2 more machines than originally planned. According to this calculation, how many days did it take to complete the original production task?
19. There are two baskets of fruit. The weight of the first basket is 1.5 times that of the second basket. If you put 15 kg in the second basket, the two baskets are equally heavy. How many kilograms of native fruit are there in basket B? (Equation solving)
20. The fruit shop delivers 2 baskets of apples 12 and 26 baskets of pears, each of which is/10 10/0 kg. If each basket of apples weighs 30 kilograms, how many kilograms does each basket of pears weigh?
2 1. A factory produces 3432 machine parts. After five days of production, 132 will not be produced. How many parts are produced on average every day?
23. The elder brother is 0.5 times older than the younger brother. Their ages add up to 25. How old are brother and younger brother?
24. Two cars started from a factory at the same time and walked in opposite directions. One car travels 33 kilometers per hour, and the other car travels 42 kilometers per hour. How many hours later, the distance between two cars187.5km?
25. The sewing group made 22 sets of adult clothes, children's clothes 19 sets and cloth167m. It is known that each set of children's clothing fabric is 3 meters and each set of adult clothing fabric is several meters. (two methods)
26. Xiao Ming measured a rectangular piece of land, with a length of 120 steps, a width of 80 steps and a step length of 0.75 meters. How many hectares is this land?
There are 74 students in Grade Four, two more than Grade One. How many students are there in Grade One?
28. There are 80 fifth-grade students, and the number of boys is 1.5 times that of girls. How many male students are there?
29. A box of 6 boxes of table tennis, each box 12. Li Ming brought money from 50 yuan, sold three boxes and took it back to 6.8 yuan. How much is each ping-pong ball?
30. Two trucks of Party A and Party B leave Shanghai for Qingdao at the same time. 18 hours later, train A was 57.6 kilometers behind train B, and the speed of train A was 32.5 kilometers per hour. What is the speed of train B?
3 1. The fruit shop sold two boxes of the same pears, the first box was 24 kg, the second box was 27 kg, and the second box sold more 4.8 yuan than the first box. What is the average price per kilogram of pears? (Equation, Arithmetic)
32. Buy 5 pens and 7 notebooks. The total price of pens is more than that of notebooks 1.3 yuan. The price of the notebook is 0.85 yuan. How much is a pen?
33. There are two barrels of oil. The weight of barrel A is 1.5 times that of barrel B. If barrel B is added with 2.5 kilograms, the two barrels are equally heavy. How many kilograms did the first two barrels weigh?
My brother has 20 stamps. After giving my brother three stamps, they have the same number of stamps. How many stamps does my brother have? (Equation, Arithmetic)
35. The distance between the two places is 400 kilometers. Two cars, A and B, leave from two places at the same time. Car A travels 55 kilometers per hour and car B travels 50 kilometers per hour. How many hours are there between the two cars148km? (Equation, Arithmetic)
36. Xiaoming walked 50 meters, with 8 1 step for the first time, 79 steps for the second time and 80 steps for the third time. At this speed, he walked 245 steps from home to school. How far is his home from school?
37. A parallelogram plot with a base length of 280 meters and a height of 57.5 meters receives 3,542 kilograms of corn seeds. How many kilograms of corn seeds are produced per hectare on average?
38. The road length between Party A and Party B is120km. It takes three hours for a car to transport goods from Party A to Party B, and the return journey takes 10 km/hour. How many hours did it take to get back to Party B?
39. Three groups planted 300 trees. According to this calculation, the 12 group is coming again. How many trees can a * * * plant?
40. The TV factory originally planned to produce 120 TVs every day, and 15 days to complete the task. Results The task was completed 2.5 days ahead of schedule. How much more is actually produced every day than originally planned?
4 1. A barrel of oil weighs 47kg. After using half of the oil, the barrel filled with oil weighs 24 kilograms. How much do barrels and oil weigh?
42. Car A and car B drive in opposite directions from two places. Car A travels 55 kilometers per hour, while car B travels 62 hours per hour. Car B leaves after car A leaves 1 hour, and it takes 2.5 hours for the two cars to meet. How many kilometers are the two places apart?
43. A batch of cloth was originally planned to make 80 sets of clothes. After adopting the new cutting method, each set saves 0.4 meters, resulting in 10 sets of clothes. How many meters is this batch of cloth?
44. A train passes Nanjing Yangtze River Bridge. The bridge is 6700 meters long, the train is 100 meters long, and the train travels 400 meters per minute. How many minutes does it take for this train to cross the bridge?
45. A worker originally planned to process 7728 parts in 16 days, but actually finished the task four days ahead of schedule. How many more parts are processed than planned on average every day?
46. The distance between Party A and Party B is 504 kilometers, and two cars start from both places at the same time. Car A travels 30 kilometers per hour and car B travels 33 kilometers per hour. How many kilometers less than car b when they met?
47. The machine tool factory produces 124 machine tools in the first workshop, and the production of 15 machine tools in the second workshop is twice as small as that in the first workshop. How many machine tools are produced in these two workshops?
48. Xiaoming used to learn 1 1 words every day, but now he learns five more words every day. According to this calculation, how many words can he learn in three months (30 days per month)
49. Three cars carry 240 boxes of pears at a time. At present, there are 7200 boxes of pears, and now they need to be shipped five times. How many cars do you need?
50. Xiaohong keeps 20 chickens and lays 360 eggs a month. According to this calculation, 15 chickens will be added. How many eggs will be laid a month? (Answer in two ways)
5 1. Two cars, Party A and Party B, start from the same place and have opposite directions. 1 hour later, the second car leaves. What is the distance between the two cars after 3 hours? (A car is 44.5 kilometers per hour, and B car is 38.5 kilometers per hour. Draw a line graph first, and then solve it with columns. )
52. The distance between the two places is 800 kilometers. Two cars leave from two places at the same time. A car is 45 kilometers per hour, and B car is 5 kilometers more than A car. How many kilometers are there after 7 hours?
53. The store delivered 36 baskets of pears, each weighing 27.5 kilograms. The apples shipped weigh 250 kilograms, less than twice as much as pears. How many kilograms of apples were shipped?
54. Two trains run opposite each other from two places 670 kilometers apart. Car A travels 70 kilometers per hour, and car B travels 80 kilometers per hour. 0 hours after the 65438+A train leaves, the B train leaves. Two cars will meet in a few hours.
55. The school planned to collect 750 thousand scrap iron in June, but actually collected 870 kilograms. How many kilograms do you actually collect every day than planned?
56. After Party A and Party B accept the task of producing 120 parts at the same time, they start to work at the same time. Party A produces 15 pieces per hour, and Party B produces 12 pieces per hour. When Party A finishes the task, how much does Party B have to finish?
57. A water pump used to irrigate 0.75 hectares a day, but now it irrigates 0.2 hectares more than originally planned. How many days does it take for two such pumps to irrigate 19 hectares?
58. The automobile transportation company has eight vehicles, each of which weighs 64 tons. According to this calculation, there are now four more cars. How many tons can each unit transport?
59. Two ships, A and B, are sailing from Shanghai to Qingdao at the same time. Party A travels 36.5 kilometers per hour and Party B travels 43.2 kilometers per hour. After 8 hours, how many kilometers are the two ships apart?
60. Li Lin read the story book and read 42 pages. It took three days. According to this calculation, it took another four days. How many pages has a * * * read? (two methods)
6 1. Agricultural Machinery Factory planned to produce 1425 farm tools. After 5 days of production/kloc-0, 300 pieces were still unfinished. How many pieces are produced on average every day in this 15 day?
62. The price per kilogram of flour in the store is 0.92 yuan, and the rice is 0.8 yuan. Aunt Wang bought 25 Jin of flour and rice and paid 100 yuan. How much should she get back? (two methods)
63. It is planned to produce16,800 washing machines throughout the year. As a result, the annual task was completed two months ahead of schedule. According to this calculation, how many washing machines can be produced in a year?
64. A train runs within 2 hours 106 km. Eight hours after starting from Station A at this speed, there is still 20 1.8 km from bilibili. Find the distance between the two stations.
65. A tractor used to transport 1.5 tons of cement at a time, but now it transports 0.4 tons more than before. Now it uses two such tractors to transport 38 tons of cement. How many times do you need to transport?
66. Greening cities on rectangular land with a length of 16 km and a width of 13 km. It is planned to plant 3750 trees per hectare. How many trees can be planted in this land?
67. A tractor can transport 240 baskets of pears in three trips, and an orchard can transport 7,200 baskets. How many trips can five such tractors carry?
68. The kindergarten teacher bought 250 toys for the children, and after distributing them to 40 children on average, there was still 10 left. How many pieces are allocated to each child on average?
Respondent: 6258 1 1970- beginner level, August 20, 2008 +04: 00.
1. A has 14.8 yuan and B has 15.2 yuan. They want to buy a football together. The price of a football is twice their money. How much is a football? How much are they short of?
2. A machine plows 15 hectares in 3 hours. According to this calculation, how many hours does it take for five machines to plow 75 hectares?
There are 14 boxes of duck eggs in the shop. Sold 250kg, leaving 4 boxes and 20kg. How many kilograms are there in each box of duck eggs?
4. bright primary school donated books to mountain students, with 240 books in grade four, twice as many as in grade five, and more books in grade six than in grade five 120. How many books did he donate per grade on average?
The grain store delivered 20 bags of rice and 20 bags of flour, 90 kilograms of rice and 25 kilograms of flour each. How many kilograms more rice is brought in than flour? (Answer in two ways)
6. The length of the two ropes is 48.4 meters. After cutting 6.4 meters from the first rope, the second rope is 6 meters more than the remaining two of the first rope. How long are the two ropes?
1. Students in the fourth and fifth grades collect tree species, and the fourth grade collects tree species 18.6 kg, which is 2.5 kg less than that in the fifth grade. How many kilograms of tree species were collected in the second grade?
A workshop used to consume 2450 kWh of electricity every month. After the energy-saving activities, the original electricity consumption for one year can now be increased by two months. How many kWh of electricity does this workshop save on average every month?
1. Students take part in tree planting activities. There are 96 students in Grade 4 * * * with 3 trees each, and 87 students in Grade 5 with 4 trees each. How many more trees were planted in the fifth grade than in the fourth grade?
2. The scores of six students in the first group were 86, 79, 98, 100, 89 and 94 respectively. What is their average score?
3. The car travels for 3 hours 135km, and the plane is 28 times faster than the car and flies 60km less. How many kilometers does this plane fly per hour?
1. A clothing factory produced 850 suits in five days. According to this calculation, how many suits are produced a month? (30 days a month)
2. The store delivered 8 baskets of apples, 12 baskets of pears, with 38kg apples and 42kg pears in each basket. How many kilograms of fruit did this shop ship?
3. A construction site needs 240 tons of cement, which will be transported by five vehicles. Each car carries 3 tons at a time. How many times does it take to transport it? (There are two comprehensive solutions)
1. The distance between Party A and Party B is 750km. How many hours can a car travel at 50 kilometers per hour to reach Party B? (List the equations with unknowns and solve them again)
Obana Xiaolin has 12 pencils, and Xiaogang and Xiaohong have 20 pencils. How many pencils do they have on average?
1. A grade three or four primary school needs to water 620 trees. In the third grade, 40 trees should be watered every day for 8 days. The rest will be watered in the fourth grade. How many trees will be watered every day after five days?
2.3 The loom weaves 336m in 4 hours. According to this calculation, how many meters does 1 loom weave in 8 hours? The distance between Party A and Party B is 560 kilometers. One car travels from Party A to Party B at a speed of 48 kilometers per hour, and the other car travels from Party B to Party A at a speed of 32 kilometers per hour. How many kilometers apart are the two cars five hours after they leave the two places?
A section of highway was originally planned to be completed in 20 days. Actually, 45 meters are built every day more than originally planned, and the task is completed five days ahead of schedule. How many meters was originally planned to be built every day?