Be sure to calculate in three steps!

Fourth grade math application problems review

Class _______ Name _______

I. Ideas training

1, Li Dabo 4 hours **** to 820 apple trees sprayed. According to this calculation, how many apple trees can be sprayed in 6 hours?

Solve first _________________, and then _____________________________.

Solution:

2, the road repair team to repair a 529-meter-long highway, has been repaired for 4 days, the average repair 55 meters per day, the remaining to be completed in 5 days, the remaining average repair how many meters per day?

Steps: ① first __________________; Solution:

② and then ___________________;

③ last __________________.

3. Winter reads a storybook, 180 pages in 5 days. According to this rate for another 8 days, winter and winter a **** read how many pages?

Solution 1: First find ________________________, then ____________________________

The formula: ___________

Solution 2: First find _______________________, then ____________________________

Solution 3: Winter reads a storybook, 5 days, 180 pages. _____________________________. Column:___________

4, the school used 600 yuan to buy six boxes of pens awarded to the three good students, each box of 10, the average of each pen how much yuan?

Solution 1: first seek _________________, and then seek _____________________________. The equation: ___________

Solution 2: Find _________________ and then _____________________________. The formula:___________

Second, basic training.

1, Zhang Dabo family has 940 kilograms of rice, every 50 kilograms in a bag, at least how many bags will be needed to pack these rice?

2, repair a 960-meter-long canal, the original plan to complete the task in 24 days. The actual repair 48 meters per day, how many days in advance of the actual completion of the task?

3, the students lined up to do exercises, if each line stands 24 people, need to stand 36 lines; if each line stands 32 people, need to stand how many lines?

4, a set of clothing, tops 54 yuan, pants 38 yuan. ① 8 sets of such clothing to how many dollars? ② 690 yuan can buy a maximum of how many sets of such clothes?

5, a bottle of oil, even the bottle of 700 grams, after eating half of the oil, even the bottle still weighs 450 grams. How many grams of oil? How many grams does the bottle weigh?

6, A team of engineers to repair the road 128 meters per day, B team of engineers to repair the road 236 meters per day, C team of engineers to repair the road 136 meters per day, D team of engineers to repair the road 264 meters per day. Existing a 500-meter road, the requirements of a day to repair, choose which several engineering team repair is more appropriate?

7, the school built a new building, *** 4 floors, each floor has 5 classrooms, each classroom installed 12 fluorescent lamps. How many fluorescent lamps are installed in this building ***?

8, 15 frogs can eat 480 mosquitoes an hour. According to this calculation, 250 frogs can eat how many in an hour? If 50 mosquitoes weigh 1 gram, then 6000 mosquitoes weigh how many grams?

9, spring seedling elementary school first grade and second grade organized children to go on a trip together. The first grade has 48 people, the second grade has 44 people. Known as the van 17 people per car, the bus 35 people per car. Please help them to design a car rental program.

10, in front of the park, Li parked the car, the first hour to pay 4 yuan, and then pay 2 yuan per hour; Zhang parked the van, the first hour to pay 5 yuan, and then pay 3 yuan per hour. They both paid 14 yuan, how many hours of parking each?

10, the school flower bed contains 13 rows of moonflowers, each row of 12 plants; also contains 8 rows of chrysanthemums, each row of 24 plants. How many fewer moonflowers than chrysanthemums?

11, the little sloppy in the calculation, accidentally wrote the divisor 25 52, the result of the quotient is 6, the remainder is 40. What is the correct quotient?

13, basketball 80 yuan each, volleyball 60 yuan each, soccer 90 yuan each.

① buy 2 basketballs and 3 soccer a **** how many dollars? ② If you are given 300 yuan, how do you arrange?

14, Li Jun in the calculation of division, the divisor 43 written as 34, the result of the quotient 16 and the remaining 22. can you calculate the correct result?

15, there are two layers of books on the bookshelf,***122 books. If you take out 6 books from the top and put them on the bottom, the number of books on both shelves will be the same. How many books are on the bookshelf and how many books are on the lower shelf?

16, A and B are 150 kilometers apart. A car from A to B, line 3 hours later, 15 kilometers from B. How many cars per hour on average? How many kilometers per hour does the car travel on average?

17, the sum of two additions is 27 times greater than one and 72 times greater than the other. What is the sum and difference of the two additions?

18, there are two piles of pieces, the first pile of 67, the second pile of 53, from the second pile of how many pieces out of the first pile of pieces can make the first pile of pieces is twice the number of the second pile?

Second, the comprehensive development

1, the sum of two numbers is 957, one of the digits of an additive is 0, if the 0 is removed, it is the same as the other additive. What are these two numbers?

2, the school to participate in the dance interest group students, girls more than boys 60 people, girls than boys 4 times less than 15 people, how many men, how many girls? (Hint: draw a line graph maybe you can answer yo!)

3, the grandfather is 70 years old this year, the granddaughter is 10 years old this year, the year after the grandfather's age is a few times the granddaughter? A few years after the grandfather's age is 5 times the granddaughter?

4, two numbers are divided, the quotient is 23, the remainder is 12. The sum of the divisor and divisor is 396.

5, there is a batch of goods, if 5 big trucks and 2 small trucks just finished, or 2 big trucks and 8 small trucks just finished, if all the big trucks, how many to finish?

6, four (1) class of 46 students to go boating, there can be 6 people in the big boat and 4 people in the small boat **** 10, if it is exactly full (there is no empty seat, everyone has a seat), then how should they rent a boat?

7, Mr. Wang's home in the seventh floor, the morning of the elevator downstairs, each floor stayed for 30 seconds, the elevator down a floor to 15 seconds, Mr. Wang took the elevator downstairs with how much time?

8, two cars on the **** sat 105 people, if the Golden Dragon car to increase 5 people, Daewoo car to reduce the number of 4 people, then the number of people on the two cars is the same, the original two cars sit on how many people?

9, a snail along the column to climb up, every morning to evening to climb up 5 meters, the night and slide down 4 meters, according to this climb, the snail climbed 20 days to the top of the column. How high is the pillar?

10, if you buy 6 boxes of chalk and 3 boxes of crayons *** need 194 yuan, buy 2 boxes of chalk and be a box of crayons *** need 126 yuan, then buy 8 boxes of chalk and 3 boxes of crayons *** how many yuan?

11, there are 81 students to go to school across the river, and there is only one boat on the river can only carry a maximum of 11 people, and there is no boatman, ask, these students all across the river at least how many times? If the boat to cross the river once to 3 minutes, then all the students across the river to

12, Wang Dabo drove a pig to the market for rabbits, if a pig can be exchanged for 3 sheep, a sheep can be exchanged for 2 rabbits. So how many rabbits can Wang Dabo exchange? How many sheep?

13, 41 tons of rice to be transported from the warehouse to the workshop. A large truck can transport 5 tons each time, a small truck can transport 3 tons each time. How to design the transportation program so that the minimum number of transports, and each truck can

14, in a subtraction equation, the subtracted number plus the subtracted number, plus the difference is 90, the subtracted number is 15, the subtracted number, the difference is how much? 15, this year, the uncle is 21 years old, Siu Wah is 5 years old, a few years later the uncle's age is Siu Wah's three times?

16, the circumference of a circular garden is 785 meters, in the garden around the equal distance from the planting of osmanthus 157 trees, then how many meters between the two trees?

17, Nanjing Yangtze River Bridge than the United States, New York Bridge is 4570 meters long, New York Bridge than China's Wuhan Yangtze River Bridge is 530 meters long. Known three bridges *** long 10640 meters, these three bridges are how many meters long?

18, a small store, to the price of 16 yuan per box to buy 30 boxes of cassette tapes, and then sold at a price of 20 yuan per box, sold out can earn as much as how many dollars? (In addition to the fare, taxes and other expenses 25 yuan)

19, a school multimedia classroom, *** have 15 rows of seats, the first row *** have 20 seats, after each beat than the front row of more than 2 seats, this classroom *** how many seats?

20, Mr. Chen is ready to distribute a box of cookies to the children of the small class, if each child 0 pieces, there are 20 pieces left; if each child 11 pieces, and 8 pieces less. Do you know how many cookies are in this box? How many children are in the class?

1, a workshop to produce 1560 TV sets, has been produced for 8 days, 120 units per day, the remaining daily production of 150 units, how many days to complete the task?

2, a clothing workshop to do a set of clothing with cloth 48 minutes, changed to a new method of cutting, each set of cloth can save 3 minutes, the original plan to do 3,000 sets of clothing cloth, can now do more sets?

3, a chicken farm in January, 13,600 broilers shipped in February, the shipment of broilers is twice as much as in January, the shipment of March than the first two months of the total number of 800 less, how many shipped in March?

4. Master Wang plans to produce a batch of parts, 90 per day, 12 days to complete. The result is more than the original plan to produce 18 per day, can be completed a few days ahead of schedule?

5, 4 baskets of tomatoes **** weight 80 kg, 5 baskets of vegetables **** weight 125 kg. On average, how many kilograms per basket of vegetables than tomatoes?

6, the cafeteria brought 1200 kilograms of coal, burned 16 days, there are still 480 kilograms. How many kilograms are burned per day on average?

7, the new village elementary school 430 students, divided into five cars to visit the countryside. The first 4 cars sit 84 people, the fifth car to sit how many people, to ensure that all sit on the car?

8, the school library to buy storybooks and technology books **** 1020, of which 850 storybooks, storybooks than technology books, how many more? How many times more storybooks than technology books?

9, Honghua Clothing Factory to do a number of school uniforms, has been done for 12 days, an average of 1450 per day, still 109 pieces, a *** to do how many pieces?

10, a specialized poultry, ducks 890, the number of chickens is 3 times less than 15 ducks. So, how many ducks and chickens **** this poultry farmer?

11, Xiaohua has 84 stamps, Xiaorong's stamps than Xiaohua more than 18, Xiaomei's stamps is Xiaorong's two times less 41, Xiaomei has how many stamps?

12, the factory has a batch of fertilizer, has been filled 84 bags, 60 kg per bag, there are 1860 kg left. If this batch of fertilizer evenly divided into three shipments, how many kilograms per shipment?

13, a road repair team, repair a 5600-meter-long highway, has been repaired for 12 days, there are 800 meters left. How many meters per day on average? How many days does it take to repair this highway?

14, a basket of oranges with the basket weighs 26 kilograms, after selling half of the oranges, with the basket weighs 14 kilograms, how many kilograms of oranges and the basket?

15, the zoo's three elephants eat 1620 kilograms of food per day, a panda 5 days to eat 120 kilograms of food. How many kilograms of food does an elephant eat per day than a panda?

16, a hotel to receive a group of guests, if each room to live 2 people, only 36 rooms are needed; if each room to live 3 people, you can use a few rooms less?

17, the clothing company plans to 25 days of production 1275 sets of school uniforms, the first 5 days of production of 195 sets, to complete the task within the original number of days planned, after the average daily production of how many sets?

18, refrigerator factory originally planned to produce 50 units of refrigerators per day can be completed in the scheduled time. The actual production of 60 units per day, the results of 3 days ahead of schedule to complete the task. This batch of refrigerators *** how many units?

19, the clothing factory plans to produce drum and bugle corps dress, 75 sets per day, 24 days of production, more than the original plan to produce 200 sets. Then, the original plan to produce how many sets?

20, the fourth grade students planted 400 trees, the fifth grade than two times less than the fourth grade 68 trees. How many trees were planted in the fourth and fifth grades?

20.