First, according to the meaning of the question, find out the unit "1" and tell the equal relationship of quantity.

1. The weight of fruit candy is milk candy.

There are more apple trees than pear trees 12.

The price of a basketball is equivalent to the price of a football.

There are seven fewer chickens than ducks.

A canal has been built.

6. There are more black rabbits than white rabbits

7. When ice becomes water, its volume becomes smaller.

8. The actual water consumption is 20% less than the original plan.

9. Reduce the price of a suit by 15%.

10. The factory output value increased by 5%.

1 1. The output of green vegetables has increased by 20% this year.

12. The qualified rate of parts produced by this factory is 99%.

13. 15% discount on apartments.

14. Last year, the grain output decreased by 10%.

the first group

1. The store bought 25 bags of jackets, and the number of bags of suits is jackets. How many bags of suits are there?

2. The store bought 15 packages of suits, which are coats. How many bags of jackets are there?

3. Pants, 75 yuan, are tops. How much is this suit?

Mom bought a kilogram of fructose, which is butterscotch, and the crisp candy she bought is butterscotch. How much does shortbread weigh?

This shop bought 20 kilograms of apples and sold them. How many kilograms did you sell?

6. A bag of rice, if eaten, is exactly 0.08 tons. How much does this bag of rice weigh?

the second group

1. I bought a bag of rice in the canteen, weighing 400 Jin. How many catties are left after eating?

2. The canteen bought a bag of rice to eat, and the rest was 150kg. How many kilograms of rice did you buy?

I went to plant trees in the fifth and sixth grade. In the fifth grade, I planted 150 trees. In the sixth grade, I planted a total tree. How many trees did I plant in grade five or six? How many trees were planted in the sixth grade?

A canal has been built for 240 meters, and it still has 60% of its length. How long is this canal?

There are two tons of coal in a pile. How many tons were used?

6. Young Pioneers collected 57 specimens, including plant specimens and other insect specimens. How many specimens did the Young Pioneers collect?

Third groups

1. The site transported 18 tons of yellow sand. The cement is less than yellow sand. How many tons is yellow sand more than cement?

2. The water consumption of canteen 10 is less than that of September 12 tons, and that of canteen 10 is less than that of September 10%. How many tons are used in the canteen in September?

There are 20 footballs in the school, and there are more basketball than football. How many basketballs are there?

There are 20 footballs in the school, but there are fewer footballs than basketball. How many basketballs are there?

5. The Central Group actually invested180,000 yuan to build the building, which was less than planned 10%. How much money was saved than planned?

6. The original price of a DVD player was 1260 yuan, but now the price has been reduced. What's the current price?

7. One bundle of wires is120m long, which is shorter than the other bundle. How long is the other bundle of wires?

8. 65,438+0,500 trees were planted last year. We plan to plant 20% more trees this year than last year. How many trees are planned to be planted this year?

9. The current price of a TV set is 1500 yuan, which is 25% cheaper than before. How much did this TV set cost?

Fourth groups

1. 300 corn seeds were used for germination test, and 288 seeds germinated, and the germination rate was obtained.

2.2000 peanut kernels can squeeze out 760 kilograms of peanut oil, and the peanut oil yield can be obtained.

In the sixth grade, there were 120 people engaged in activities, but three people didn't come, so as to ask the attendance rate of this activity.

4. In the sixth grade math exam, 138 people passed, and 12 people failed. What is the passing rate of this exam?

5. 200 orange trees were planted, and the survival rate was 98%. How many orange trees have died?

6. The qualified rate of parts produced in one workshop is 90%. How many parts must be produced now to ensure that 1800 parts are qualified?

7. A wheat with a flour yield of 85% now has 40 tons of wheat. How many tons of flour can be ground?

8. Last year, 234 graduates from a middle school were promoted to a higher school, and the enrollment rate was 90%. How many graduates of this school have not been promoted to a higher school?

Fifth groups

1. Bus 18 and car 15 are parked in the parking lot.

1) How many times are buses as cars?

2) A fraction of cars are big cars?

3) How much is the bus more than the car?

4) How many points are cars less than buses?

2. Last year, the planned afforestation was 12 hectares, and the actual afforestation was 15 hectares. What percentage is the actual afforestation more than the original plan?

There are 15 peach trees and 20 loquat trees in the orchard. How much less peach trees are than loquat trees?

It was originally planned to produce120,000 washing machines this year, but actually 4,000 more were produced. What is the percentage of overproduction?

This TV factory has produced 84,000 TV sets this year, 4,000 more than planned. What is the percentage of overproduction?

6. The motorcycle factory planned to produce 0/80,000 motorcycles this year, and actually produced 200,000 motorcycles. What is the percentage of overproduction?

7. The fishing boat Dongfeng actually caught 42.5 tons in August, 7.5 tons less than planned, and what percentage of production was reduced?

8. The original price of Sharp 29-inch color TV is 2,500 yuan, and the current price is 1800 yuan. What percentage is the current price?

9. The original price of Sharp 29-inch color TV is 2,500 yuan, and the current price is 1800 yuan. How much is the price reduction?

10. The original price of Sharp 29-inch color TV is 2500 yuan, which is more expensive than the current price. How much is the price reduction?

1 1. The current price of Sharp 29-inch color TV 1800 yuan is cheaper than the original price by 700 yuan. How much is the price reduction?

Sixth groups

1. The turnover of a food stall in June was 3000 yuan. If the business tax is paid at 5% of the turnover, how much should the business tax be paid?

2. The cigarette sales of the cigarette factory in July was150,000 yuan. If you pay consumption tax according to 45% of sales, how much business tax will you pay in July?

3. Teacher Wang bought the national debt of 1.500 yuan with a fixed term of 3 years, if the annual interest rate is 2.89%. How much can he get back when it expires?

On June, 2003, Mr. Liu deposited 8,000 yuan in the bank for 2 years. If the annual interest rate is 2.43%, how much money can he get back when it expires?

5. Professor Zhang's income in January is as follows: salary is 2600 yuan, near 600 yuan, and contribution fee is 600 yuan. According to the new tax law, after deducting 1600 yuan, the tax will be paid at 5%. What is Professor Zhang's actual income in January?

6. The original price of an air conditioner in Suning Group was 3,200 yuan, and now it is 2,800 yuan. How much is this air conditioner?

7. The original price of a health equipment 1800 yuan is now sold at a 10% discount. How much cheaper than before?

8. What is the original price of this coat in 880 yuan after 20% discount?

9. The total grain output of Wangxing Township was 40 million tons last year, and it is expected to reach 44.8 million tons this year. How much is the output expected to increase this year compared with last year?

10. dongfang village harvested 27.6 tons of wheat last year, more than the previous year 10%. How many tons more than last year?

1 1. The deposit balance of a bank last year was 147 billion yuan, an increase of 3.2 billion yuan over the previous year. What proportion? (Keep one decimal place before the percent sign)

Seventh groups

1. The ratio of boys to girls in the math interest group is 5: 2, with 30 boys. How many girls are there?

2. The ratio of male to female students in the math interest group is 5: 2, and there are 30 girls. How many boys are there?

3. The ratio of boys and girls in the math interest group is 5: 2, and there are 1 *** 140 boys and girls. How many boys and girls are there?

4. The number of men and women in the math interest group is 5: 2, and there are 30 more boys than girls. How many boys and girls are there?

The oxygen content in water is 8 times that of hydrogen. There are 72 grams of water now. How much oxygen can you get after decomposition?

6. A kind of concrete is made of cement, stone and sand in the ratio of 2: 3: 5. How many kilograms of cement, stone and sand do you need to make 2 tons of this concrete?

7. Kingsley Hotel wants to recruit a group of waiters according to the ratio of male to female of 3: 5. As a result, it recruited 120 people, including how many waitresses?

8. A kind of brine, the ratio of salt to water is 1: 2 1, and now there is 2 1 g of salt. How many grams can this salt water match?

9. A assorted candy, which is made of fruit candy, milk candy and crisp candy in a ratio of 4: 3: 5. There are 60 kilograms of toffee now. How many kilograms of fruit candy and crisp candy do you need for this assorted candy?

Eighth groups

1. There are 60 fewer pine trees than willow trees, and willow trees are three times as many as pine trees. How many pines and willows are there?

2. There are 60 people in a workshop, and the number of male workers is female. How many men and women are there respectively?

There are 56 more peach trees than apple trees. Peach trees belong to apple trees. How many peach and willow trees are there?

4. The number of pine trees is 2 less than that of willow trees, and there are 56 willow trees. How many pine trees are there?

5. There are 3 more boys than girls in the chorus group, boys 15. How many girls are there?

6. There are 8 girls in the math interest group, with 2 more girls than boys. How many boys are there?

7. There are less than 3 girls and 24 boys in the science and technology group. How many people are there in the science and technology group?

Ninth groups

1.① A rope is 2 meters long. How many meters are left after cutting? (2) A rope is 2 meters long. How many meters are left after cutting off the meters?

There are 36 tons of steel in the warehouse. For the first time, 10% was used, and for the second time, tons were used. How many tons of steel are left?

3. Transport a batch of 90 tons of cement for the first time and transport it for the second time. How many tons were transported twice?

An engineering team built a road, which was built in the first week and in the second week, which was more kilometers than the first week. What is the total length of this road?

5. A book has 240 pages, read it on the first day. I read 35% the next day, and how many pages did I read on the third day and the third day?

6. There is a bag of rice. I ate 40% in the first week, and in the second week 12 kg, there were 6 kg left. How many kilograms is this bag of rice?

7. Xiaohong finished reading a book in three days. On the first day, she read 30% of the whole book. On the second and third day, she read 120 pages. How many pages are there in this book?

Group 10, engineering application problems

1. Repair a section of highway, team A 10, team B 15. How many days can the two teams finish it together?

A manuscript should be typed in one hour and two hours, and both parties should type it together. How many hours should I call?

3. For a project, Party A and Party B will complete it in 6 days, one for Party A 10 days, and one for Party B for several days?

4. It takes 12 hours for Party A, 10 hours for Party B and 15 hours for Party C to process a batch of parts and do it alone. How many hours does it take for three people to work at the same time?

5. A pile of goods can be transported for 4 hours by one car; Car B can be delivered in six hours by one person. How many hours does it take to transport this pair of goods by one car and one car?

6. Two trains leave from cities A and B relatively simultaneously. It takes 10 hour for one train to go from city A to city B, and 8 hours for another train to go from city B to city A. How long can the two trains meet?

7. It takes five hours for Zhang Hong to print a manuscript. This manuscript has been typed by others, and the rest will be typed by Zhang Hong. How many hours will it take to complete?

8. For a plot of land, it takes 15 hours for tractor A to plow alone, and 10 hours for tractor B to plow alone. Tractor b plows the field for 2 hours before tractor a plows the field. How many hours does it take to finish ploughing?

9. It takes 8 hours for Party A to complete a job alone, and the work efficiency of Party B belongs to Party A. How many hours does it take for Party A and Party B to cooperate to complete this job?

10. For a project, it takes 30 days for team A to do it alone, and the time for team B to do it alone belongs to team A. How many days does it take for Party A and Party B to cooperate to complete the project?

Group 1 1

1. The number of girls in the interest group is 3/7 of that of boys;

1) boys have 2 1. How many girls are there?

2) Interest group * * *, 42 people. How many boys and girls are there?

3) Girls 12, how much more boys than girls?

4) There are 20 more boys than girls. How many boys and girls are there?

2. The ratio of salt water, salt and water is 1: 1500.

1) How many kilograms of salt and water does it take to prepare 750.5 kilograms of this brine?

2) There are 540 kilograms of water. How many kilograms of salt do you need?

3) There are 3 kilograms of salt. How many kilograms of salt water can I exchange?

4) There are 3002 kilograms of salt water now. How many kilograms is salt more than water?

Group 12, comprehensive exercise

1. Chinese cabbage 100, ate 2/5. How much did you eat?

2. A pile of coal is 12kg. After some use, there is still 1/4kg. How many kilograms did you use?

3. The number of chairs sold by a furniture factory is 1/5 of that of tables, and the number of chairs sold is less than that of tables 120. How many tables and chairs have you sold?

There are 720 peach trees and apricot trees in the orchard, and the number of peach trees is 5/4 times that of apricot trees. How many peach and apricot trees are there?

5. The apprentice processed 45 parts, 5 more than the master's 1/2. How many parts does the master machine?

6. Workshop B processes 65,438+05,000 parts every day. After inspection, 30 waste products were found, and the qualified rate of these parts was found.

7. Xiao Li is shorter than Xiaohua116. Xiao Li's height 135 cm. How tall is the floret?

There are 50 tons of coal in the canteen. On the first day, 5% of the total was used, and on the second day, 5/4 tons was used. How many tons of coal are left?

9. Last year, the planned afforestation was 12 hectares, and the actual afforestation was 15 hectares. What percentage is the actual afforestation more than the original plan?

1 0. On June, 20031day, Mr. Liu deposited 8,000 yuan in the bank for 2 years. If the annual interest rate is 2.43%, how much principal and after-tax interest can he withdraw at maturity?

1 1. To build a section of highway, Team A 10 and Team B 15 will finish. How many days can the two teams finish together?

12. The school bought 120 white table tennis balls, 2/5 less than the yellow ones. How many of these two kinds of balls did you buy?

13. A wire is 20 meters long. How many meters does it need? (Use 20÷5×3, right? )

14. There are 1500 bags of rice in the granary. How many bags are left after shipment?

15. A piece of flower cloth, used, with rice left. How many meters is this cloth?

16. A steel bar is 100 meters long. How many meters does it take to use it?

17. An engineering team wants to dig a kilometer canal and has already dug kilometers. How many kilometers does it take to dig this canal?

18. The distance between Party A and Party B is 2 10/0km. A car has traveled 55 kilometers from A to B. How many kilometers does it take to get to the whole place?

19.A road 1200m, Team A has been built. How many meters does it take to reach 1000m?

20. road a 1200m, team a has been built. How many meters does it take to reach the full length?

2 1. There is a hectare of land, in which corn and cucumber are planted, and the rest are planted with lettuce. Please find a place to grow lettuce.

22. A pile of coal was transported for the first time, and 2 1 ton was transported for the second time, leaving 14 ton. How many tons is this pile of coal?