2. My mother is 46 years old, and Xiao Qiang 12 years old. How many teenage mothers are three times as old as Xiao Qiang?
Xiao Ming has read 320 pages of books. He reads 16 pages every day. It's been eight days. How many days will it take to finish reading the rest?
4. Make a rectangle with 76 cm wire. The width should be16cm. What should the length be?
5. I bought 8 kg of cucumber and 6 kg of eggplant in the canteen and handed them over to 15 yuan and got them back 1.4 yuan. Cucumber is 0.8 yuan per kilogram. How much is eggplant per kilogram?
6. The forestry team planted four times as many poplars as willow trees, and 54 more poplars than willow trees. How many poplars are there?
7. The distance between the two places is 400 kilometers. Two cars, A and B, are driving from two places at the same time. Car A travels 38 kilometers per hour, while car B travels 42 kilometers per hour. A few hours later, the distance between the two cars was 40 kilometers.
There are 380 pear trees and peach trees in the orchard, and the number of peach trees is more than three times that of pear trees. How many peach trees and pear trees are there?
9. There are two barrels of oil, barrel A has 45 kilograms of oil and barrel B has 24 kilograms of oil. How many kilograms of oil can be poured from barrel A to barrel B to make the oil in barrel A and barrel B equal in weight?
10, this building is 29.2 meters high, and it is ready to open a shop on the first floor, with a height of 4 meters, and the 9 floors above are residential. What is the height of each floor of the house?
1 1, Miss Wang's school is 3.5km After riding an electric car 10 minutes, it is still 0.8km away from school. Miss Wang scored every point.
12. The price of a car is135,000 yuan, which is 5,000 yuan less than the price of a motorcycle. What is the price of a motorcycle?
13, 1. The planned investment in the school building is 450,000 yuan, and the actual investment is 400,000 yuan. What percentage has the actual investment saved?
14. The school planned to use 480 kwh of electricity in May, but actually used 60 kwh less. What percentage of electricity was actually saved? (Fujian Xiao Yun Experimental Primary School)
15. A factory plans to produce 400 TV sets in March, with 250 actually produced in the first half and 230 in the second half. What is the actual percentage of exceeding the plan? (Nanchang qingyunpu district)
16. At present, there are three water pipes, A, B and C. The water pipe A flows out the salt water with a salt content of 20% at a speed of 4g per second, B flows out the salt water with a salt content of 15% at a speed of 6g per second, and C flows out at a speed of 10g per second. After the pipe C is opened, stop the flow for 2 seconds, then stop the flow for 5 seconds, and then stop the flow for 2 seconds. (School of Foreign Languages, Wuhan University)
17. There are 75 students in the painting and calligraphy class and 48 students in the dance class in Guangxin Primary School. What percentage of the students in the painting and calligraphy class are more than those in the dance class? (Nanning)
18. Xiaoming experimented with a bag of mung beans, including 100 germinated seeds and 25 non-germinated seeds. Find the germination rate of this package of mung beans. (Wenling City, Zhejiang Province)
After reading 4 pages, how many parts did you read the next day? (Wuxi City, Jiangsu Province)
19 donated money to the disaster area. Xiaohua donated 4.2 yuan, 0.4 yuan more than Xiaoli. How much did Xiaohua donate more than Xiaoli? (Anyang City, Henan Province)
20. A dress was sold at a 20% discount 100 yuan, which was actually sold in 90 yuan. What is the actual discount? (Xianju County, Zhejiang Province)
10. The canteen sent 600 kg of rice, which has been eaten for 4 days, 50 kg per day. How many Jin do you eat every day for the remaining five days? (Nanjing jianye district)
1 1.3 boxes of oranges are 24 kilograms less than 3 baskets of apples. On average, each box of oranges weighs 20 kilograms, and how many kilograms does each basket of apples weigh? (Taizhou City, Zhejiang Province)
12. In the activity of collecting tree species for greening the motherland, 20 kilograms of tree species were collected by five classes in grade four and 60 kilograms by three classes in grade five in a school. How many kilograms of tree species were collected in each class on average? (Shanghai)
13. Da Qiao Town built a canal with a length of 2 100 meters, which lasted for 5 days, with an average of 240 meters per day. The remaining tasks should be completed within 3 days. How many meters do you need to repair every day on average? (Qinhuai District, Nanjing)
14. Xiaoming went to the store to buy three mini-soccer balls and gave them 20 yuan. He got back 1.85 yuan. How much is each football? (Yinchuan Experimental Primary School)
15. There are 4 teams in one class, and each team has 12 young pioneers. In the donation activity of "Project Hope", * * * donated 240 yuan. How much does each young pioneer donate on average? (Shanghai)
16. Yucai Primary School bought 2 small soccer balls and 25 long ropes, which cost 408.5 yuan. The price of each small football is 48 yuan. What's the price of each long rope? (nanchang district, Wuxi City, Jiangsu Province)
17. Wang Hua bought five copies of Interesting Mathematics and five copies of Story King, and bought one with 20 yuan. How much is each copy of interesting mathematics, 2.6 yuan and Story King? (Yanta District, Xi City)
18. The convoy has to transport 89 tons of goods, and the first three times each transport 10.5 tons. The rest will be shipped in five installments. How many tons per shipment on average? (Shanghai)
19.4 students play singles on the table tennis table for 60 minutes. How many minutes did each student play on average? (Jian 'ou City, Fujian Province)
20. The average score of Chinese, mathematics and common sense in the final exam is 95, and the average score of Chinese and mathematics is 93. Q: How many points did you get in the common sense exam? (Jiangshan City, Zhejiang Province)
Class 2 1.5 (1) planted trees, with 6 trees for 26 boys and 5 trees for 24 girls. How many trees do boys and girls plant on average? (donghu district, Nanchang)
22. Dong Li used 5 yuan money to buy stationery. He has spent 1.5 yuan to buy pencils, and the rest of the money is used to buy exercise books, each of which is 0.35 yuan. How many exercise books can he buy? (Shanghai Changqing School)
23. If a batch of apples are divided equally among the children in the kindergarten class, each person can get 6 apples; If it is divided equally among the children in the kindergarten class, each person can get 3; How much can each child get if it is divided equally between the big class and the small class? (Nanjing jianye district)
24. Shixin Watch Factory originally planned to produce 75 watches every day, and completed the task in 12 days. It takes 10 days to actually complete the task. How many pieces are actually produced every day on average? (Wuhan Qingshan School)
25. The experimental primary school carried out the activity of "planting potted flowers in environmental protection week". Plant 1 14 pots every day for the first three days, and plant 750 pots in the last four days. How many potted flowers are planted every day during "Environmental Protection Week"? (Changsha Experimental Primary School)
The remaining 7.5 hours need to be cultivated. How much farmland is plowed per hour on average? (Yangxin County, Hubei Province)
27. A loom weaves105m in 7 hours. At this speed, how many meters can a loom weave in 8 hours? (Lin 'an City, Zhejiang Province)
28. A car travels for 3 hours 135 km. According to this calculation, how many kilometers do you drive in 8 hours? (Guilin, Guangxi)
29. 120 kg of soybean can squeeze out 16.2 kg of soybean oil, and how many kg of soybean oil can be squeezed out of 2000 kg of soybean? (Using Proportional Solution) (Taishun County, Zhejiang Province)
30. Two mills in a processing plant can grind 14.4 tons of flour in 3 hours. According to this calculation, how many tons of flour can six mills grind in 8 hours? (Jian 'ou City, Fujian Province)
3 1. A garment factory received the task of producing 1200 shirts, and completed 40% in the first three days. According to this calculation, how many days will it take to complete the task? (Write two different solutions) (Shouchun School in Hefei Central District)
32. An engineering team wants to pave an expressway, which has been paved for 2.8 kilometers in the first 20 days. According to this calculation, how many days will it take to pave the remaining 4.2 kilometers? (Solving by Proportional Method) (Linhai City, Zhejiang Province)
33. Harvest Farm Tools Factory produces a batch of sickles. It was originally planned to manufacture 360 pieces every day, which was completed in 18 days. In fact, there are 72 more every day. According to this calculation, how many days will it take to complete the task? (Qingshan District, Wuhan)
Changfeng electric fan factory plans to produce 2800 electric fans. 672 units have been produced in the first six days. According to this calculation, how many days will it take to complete the task? (baixia district, Nanjing)
35. The school-run factory of Yumin Primary School originally planned to bind 2 1600 exercise books every day, but actually 360 more exercise books were bound every day than originally planned. How many days did it take to actually complete the production task? (Hongqiao District, Tianjin)
Xiaoqing reads a 260-page story book. She read 20 pages a day for the first three days. If the rest read 25 pages a day, how many days will it take? (Chengzhong District, Xining City)
37. The school bought 342 meters of plastic rope for short jump rope. First, cut five pieces of the same length, one piece is 9 meters. According to this calculation, how many plastic ropes can be used for short skipping? (Gulou District, Nanjing)
38. The unit price of two baskets of apples is the same. The apples in basket A weigh 64kg, and those in basket B weigh 48kg. After the two baskets are sold out, the remaining apples weigh the same. As we all know, basket B sells fewer apples than basket A, 56 yuan. How much can basket a sell for? (Shouchun School in Hefei Central District)
39. Shixin Watch Factory originally planned to produce 1000 watches in 25 days, but actually produced 50 watches every day. How many days did it actually finish the task ahead of schedule? (Kaifeng City, Henan Province)
40. The TV factory planned to produce 1200 TV sets in 30 days, but in fact, it produced 10 more TV sets every day than planned. How many days did it actually complete the task? (Dongyang City, Zhejiang Province)