2. A section of road is 324 meters long, 240 meters has been repaired, and the rest is planned to be completed in 4 hours. How many meters are repaired per hour on average?
3. Hong Guang Printing Factory bound a batch of diaries, 960 copies were bound three days ago, and 420 copies were bound every day after 16. How many copies are there in this batch of diaries?
A typist enters 200 Chinese characters in 4 minutes. According to this calculation, how many minutes does it take to input 3000 Chinese characters?
5. Three bags of flour weigh 75 kilograms, and eight bags of flour weigh how many kilograms?
6. A steel plant needs 5 tons of water to smelt 750 kilograms of steel. According to this calculation, how many kilograms can a steel mill make by saving 55 tons of domestic water a day?
7. Five boxes of bees can brew 375 kilograms of honey a year. According to this calculation, how many Jin of honey can a 19 box of bees brew a year? How many boxes of bees does it take to brew 1725 kg of honey a year?
8. Two grade students go to buy books. There are 48 students in grade three, each of whom bought two books, and each of them bought three books in grade four. The total number of books bought in grade four is as much as that bought in grade three. How many people buy books in the fourth grade?
9. The workers repaired the road. Forty workers were originally planned, but 45 workers were actually used. The road is planned to be built for 90 days. How many days did it actually take?
10. Xiaohua needs 20 points to walk home from school and 10 points to ride home by bike. Xiaohua walks 45 meters every minute. How many meters does he ride a bike in each branch?
1 1. The school bought 15 boxes of colored chalk, each containing 50 pieces, and used 10 boxes. How many useless branches are left?
12. The first, second and third workshops of Haitian Machinery Factory each produce 6 boxes of parts, each box 120 pieces. How many pieces did a * * * produce?
13. One loom weaves 2 1 m an hour. How many meters do four identical looms weave in five hours?
14. The bus traveled from Nanjing to Shanghai at a speed of 60 kilometers per hour, and it took half the journey in three hours. Because one person in the car is ill, the rest of the journey will take 2 hours. How many kilometers per hour on average?
15. Master Liu processed 4255 parts in 23 days, Wang.
Master Liu handles more pieces per day than Master Liu 18. How many parts does Master Wang process every day?
16. A cow in Uncle Li's family eats 50 kg of grass 10 day. According to this calculation, how many days can 155 kg of grass feed this cow?
17. lakeside park cruise ship 18, daily income 1008 yuan. According to this calculation, there are now 26 cruise ships, how much income will be increased every day?
18. The factory has to process 360 parts, and Wang Can Jr. finished it in five days. How many parts can he process in eight days at this speed?
19. I read a story book, 20 pages a day, and I read half of it in 5 days. How many pages are there in this book?
20. The teacher bought six pens, which cost three times as much as ballpoint pens, and the price of ballpoint pens was 2 yuan. How much did the teacher spend on this pen?
2 1. A workshop of agricultural machinery factory is divided into three groups to process 3420 parts, with workers 12 in each group. How many parts does each worker process on average? (Solve in two ways)
22. The factory rents 10 vehicles to transport 480 tons of goods, and each vehicle transports 12 times. How many tons does each car transport at a time?
23. Woodpeckers can eat 645 pests a day, and frogs can eat 608 pests in 8 days. How many pests do woodpeckers eat more than frogs every day?
24. A pile of coal 160 tons, and four trucks carry 96 tons three times. According to this calculation, how many times can four trucks transport this pile of coal?
25. The construction team plans to pave a 90-meter road every day and finish it in 20 days. Actually, it only took 18 days. How many meters are paved on average every day?
Thinking about the problem:
1. When Qiang Qiang was 8 years old, his father was 32 years old. How old was his father when he was twice as old as Qiang Qiang?
1. There are four classes in grade three in a school, and * * * donated 576 yuan for the disabled, with an average donation of 3 yuan per person. How many people are there in each class on average? 2. Build a road 324 meters long. 240 meters were repaired in the first 8 hours, and the rest were repaired at a speed of 2 1 meter. How many hours will it take to complete? 3. Booking a TV program for half a year requires 15 yuan. Uncle Zhang wants to subscribe to a TV program for three quarters. How much will it cost? Cable TV viewing maintenance monthly 16 yuan. How much is it for the whole year? A pile of coal is planned to burn 45 kilograms a day, which can burn for 32 days. Because of saving coal, it burned for 36 days. How many kilograms of coal are actually burned every day?
1. The road team has built a road with a length of 1500m, and has already built 300m. It will be repaired in the remaining six days. How many meters will be repaired on average every day?
The track of the sports ground is 400 meters, and Uncle Wang insists on running two and a half laps every day. How many meters does he run every day?
3. Xiaoli walks for about 50 cents. She walked 540 steps from home to school. Calculate, how many meters is it from her home to school?
4. Light blue height 134 cm, Dongdong is 5 cm higher than light blue. How many centimeters is Dongdong tall?
5. There are 257 boys and 235 girls in the third grade of Red Scarf Primary School. There are 387 people who have undergone physical examination. How many people have not had a physical examination?
6. The library has lent out 456 books, and there are 207 books left, and now it has returned 285 books. How many books are there in the library now?
7. Red Scarf Primary School bought 380 balls and 70 soccer balls, and borrowed 423 balls during extracurricular activities. How many balls are left in the school now?
8. Class 3 (2) donated 400 books, with 273 books left. Now it has bought 125 books. How many books are there in Class Three (2)?
9. Dongdong wants to buy a 3 10 yuan scooter, which has been deposited in 200 yuan. If he deposits in 30 yuan every month, a few more months will be enough.
10, the students of Dongfanghong Primary School donated 900 books for Project Hope, including 326 story books, 475 science books and the rest comic books. How many comic books are there?
1 1. The side length of a square is 8 cm. If you increase its side length by10cm, how many centimeters will its perimeter increase?
12. The circumference of the rectangular playground is 400 meters, and the length is three times the width. What is the length and width of this playground?
13, with two identical rectangles, 8 decimeters long and 4 decimeters wide. If you put them together into a rectangle, what is the circumference of the rectangle? What is the circumference of a square if it is spelled into a square?
14, Dongdong borrowed a 40-page science and technology book and returned it a week later. He intends to read six pages every day. Can he return it on time?
/kloc-Class 0/5 and Class 3 (2) have 44 people in total. The teacher is going to divide them into eight groups for discussion. How many people are left in each group?
16, a piece of 4-meter-long cloth can be cut into five vests of the same size. How much cloth does it take to make a vest?
17. A baby elephant weighs 4 tons. How many elephants can a large truck with a load 10 ton transport at a time?
18, 632 bags of dry bottles in Hongqi chain store, 385 bags were sold and 200 bags were shipped. How many bags of dry bottles are there in the shop at this time?
19, the school bought 8 10 exercise books, and took them from the first grade 168, and from the second grade 165. How many books are left?
20. The car 10 of a certain train originally had 1 16 people. After arriving at a station, 58 people got off and 45 people got on. How many people were there in this car when we drove again?
2 1, 238 yuan for a VCD and 458 yuan for a scanner. Dad brought 800 yuan. Is it enough?
22. Uncle Zhang caught 700 Jin of fish, sold 523 Jin in the morning, and sold 394 Jin less in the afternoon than in the morning.
(1) How many Jin did you sell this afternoon? (2) How many kilograms did a * * * sell on this day? (3) How many kilograms are left?
23. Xiaoming and his sister go to the bookstore together. My sister bought an English dictionary in 87 yuan, and Xiaoming bought a science book in 24 yuan. My sister paid the cashier 150 yuan. How much should I get back?
24. Make a picture frame for a picture 30 cm long and 26 cm wide. What is the circumference of the photo frame at least?
25. Make a big rectangle with two rectangles 4 cm long and 3 cm wide. What is the circumference of a big rectangle?
26. The playground of Xiangyang Primary School is rectangular, with a length of100m and a width of 65m. Xiao Qiang ran around the playground twice. How many meters did Xiao Qiang run?
27. There are 3 students1person and 2 teachers. Each ship is limited to four people. How many boats should I rent at least?
28. A pair of China chess 16 yuan, a pair of checkers 12 yuan, and a pair of Go is three times the sum of a pair of China chess and a pair of checkers. Xiao Ming takes 80 yuan, is it enough to buy a pair of Go?
The students proposed to donate 400 books to the Hand in Hand school. 58 books were donated from grade one to grade six. How many books do I have to donate to reach 400?
30. Plant trees in spring. Plant 12 in the fifth grade and 16 in the sixth grade. The number of trees planted in the whole school is three times that of the fifth and sixth grades. How many trees have been planted in the whole school?
3 1, there are 30 students, 15 came. There are five students in a row. How many rows can they line up?
32. Make a square with a 36 cm iron wire. How long are the sides of this square?
33. If a rope is 25 meters long, cut off 10 meter first, and make a short jump rope every two meters for the rest. How many short jump ropes can you make? How many meters are left?
34. Cut a rectangular piece of paper with a length of 36 cm and a width of 18 cm into two largest squares. What is the circumference of a square?
35. A rope is five times that of 45 meters, and a wire is seven times that of this rope. How long is this wire?
36. To build a 945-meter road, 354 meters were built in the first month, 276 meters in the second month, and how many meters will it take in the third month?
37. The supermarket sold 153kg of rice in the morning, and there were 56 more bags in the afternoon than in the morning. How many bags of rice did the worker sell today?
The fruit shop returned 54 baskets of fruit, 48 of which were apples and the rest were pears. How many times are there apples and pears in these baskets?
39. A car travels 55 kilometers per hour. According to this calculation, how many kilometers can you drive in 4 hours?
40. The feeding group raised 32 white rabbits and 26 black rabbits. The number of grey rabbits is less than the total number of white rabbits 18. How many gray rabbits will you raise?
4 1, the road repair team built a road, which has been repaired for 550 meters, and the rest is four times as much as it was repaired. How many meters are left? How long is this road?
42. Mingming has 42 petrol tickets, Fangfang has more than Mingming 14. How many stamps do they have?
There are 24 Metasequoia glyptostroboides in the campus, and the number of pine trees is three times that of Metasequoia glyptostroboides. How many Metasequoias and pine trees are there? How many Metasequoia trees are fewer than pine trees?
There are 35 black swans, and the number of white swans is three times that of black swans, with eight more. How many white swans are there?
45. Aunt Wang went to buy three footballs, each 28 yuan, and paid the salesperson 100 yuan. How much did she get back?
46. The rectangular playground is 55 meters long and 35 meters wide. Xiaohua ran two full laps along the playground. How many meters did he run?
47. Class Three (1) borrowed 29 books, Class Three (2) borrowed 38 books and Class Three (3) borrowed 34 books, less than the sum of Class One and Class Two. How many books did Class Three (3) borrow?
48. The fruit shop sent 850 Jin of apples, and sold 286 Jin in the morning and 354 Jin in the afternoon. How many kilograms are left?
49. A rope is 25 meters long. Cut 10 meter first, and make a short skipping rope every two meters for the rest. How many short jump ropes can you make? How many meters are left?
50. Xiaohong, Xiaoying, Xiaolan and Xiaoping have a table tennis match. Every two people play once, how many times will a * * * play? Please write them down.
5 1 650 kg of apples, sold 385 kg, and some returned 270 kg. How many kilograms of apples are there in the fruit shop now?
52. The third-grade students of Hongxing Primary School go for a spring outing in four cars. The first three carriages each carry 68 students, and the fourth carriage carries 74 people. How many people went for a spring outing?
53. An article is 600 words. Xiao Fang's father can type 67 words per minute on average. Can he finish it in 9 minutes?
Please calculate before you answer.
53. There are 26 people on the playground, and more people run than jump three quilts 10. How many people can't run?
54. The supermarket sold 176 bags of rice in the morning, and sold 43 more bags in the afternoon than in the morning. How many packages did * * * sell on this day?
A metal wire is 84 cm long. After making a square frame with a side length of 26 cm, how many centimeters are left?
56. The Children's Palace has 48 dance teams and 27 musical instruments, and the number of chorus teams is twice that of dance teams and musical instruments. How many people are there in the choir?
57. There are 38 sweets, which are distributed to 7 children on average. How much per person? How much is left?
58. A rope with a length of 19 meters should be cut for 8 meters first, and the rest should be made into a short skipping rope every 2 meters. How long can you jump rope and how many meters are left?
59. There are 600 exercise books in the stationery store. I sold some, and there are four packs of 25 copies each. How many copies have you sold?
60. Students in Grade Three planted 80 trees, and the trees planted in Grade Four and Five were twice as many as those planted in Grade Three, with 14 trees. How many trees were planted in the third grade?
6 1. There are 808 students in the school. They went for a spring outing in six cars. The first bus has already picked up 128 people. If the other five cars have the same number of people, how many students are in the last car?
39 students are skipping rope on the playground. How many groups can every three students be divided into?
Which is more expensive, the 2.4 poplar seedlings in 48 yuan or the 3 pine seedlings in 63 yuan?
3. Three (1) class children made toys, and one * * * made 48 toys for 15 kindergarten. The rest are evenly distributed to the first three classes of senior high school. How many can I get in each class?
4. Teacher Zhang took 100 to the mall and bought three small soccer balls, and got back 7 yuan. Do you know how much each little football is worth?
5. A "Story King" has 65 pages. Xiaoming plans to finish reading in 4 days, and Xiaohua plans to finish reading in 6 days. How many pages does Xiaoming read on average every day? Where is Xiaohua?
6. Zhang has raised 18 ducks, and the number of chickens is twice that of ducks. How many chickens and ducks does Zhang Dabo keep?
7. There are 45 buses in the parking lot, and 17 is more than buses. How many buses and cars are there?
8. There are obviously 42 stamps, but Fangfang is less than him 15. How many stamps do they have?
9. A coat is 45 yuan, and pants are cheaper than a coat 12 yuan. How much does it cost to buy a suit?
10. The white rabbit pulled out 14 radishes, and the gray rabbit pulled out three times. How many trees did the white rabbit pull out less than the gray rabbit?
1 1. There are 24 Metasequoias on campus, and the number of pine trees is three times that of Metasequoias. How many Metasequoia and pine trees are there? How many Metasequoia trees are fewer than pine trees?
12. There are 28 black swans in the park, and the number of white swans is three times that of black swans. How many white swans are there?
13. I went to the library to borrow books in the third grade. I borrowed 420 books in the morning and 20 more books in the afternoon than in the morning. How many books did you borrow on the third day?
14. Make a big rectangle with a side length of 1cm with six small squares. What is the length and width of this rectangle? How many centimeters is the circumference?
15. The rectangular playground is 55 meters long and 35 meters wide. Xiaohua ran twice along the playground. How many meters did he run?
16. Circle a square with a side length of 8 cm accurately with a line. How long is this line?
17. The fishing ground stocked 896 fry last year, and the number of fry stocked this year is twice that of last year. How many have been issued this year?
18. In the morning, three groups of students visited the Science Museum, each with 169 students, and in the afternoon, there were 2 13 students. How many students come to visit on this day?
19. A Niu eats 32kg of grass every day. How many kilograms of grass do two cows eat in four days?
20. There is a piece of land for growing tomatoes, eggplant and watermelon. How much is watermelon?
2 1. Uncle Li keeps 200 chickens. On the first day, he sold 128 chickens. On average, each chicken can be sold to 9 yuan. How much can Uncle Li sell this day?
The remaining chickens are sold the next day, and every 8 chickens are packed in a cage. How many cages can you hold?
22.48 Students collect insect specimens. Every three students are divided into one group. How many groups can they be divided into?
23. The students want to plant 93 trees, and have already planted 18 trees. The remaining saplings were equally distributed to five groups. How many trees will each group plant?
24. The precipitation in Shanghai in June was 42 mm, less than that in June14 mm. What is the precipitation in June and July?
This toy factory can produce 600 toys per hour. How many toys can it produce from 10 am to 2 pm?
26. Square garden with a side length of 15m. What's its circumference?
27. Put a fence around a rectangular piece of land with a length of16m and a width of 8m. How long is the fence?
28. There are *** 108 children who learn painting in Children's Palace, and the children who learn calligraphy are 36 times less than those who learn painting. How many people study calligraphy in Children's Palace?
29. Each skipping rope is 2 meters long. How many skipping ropes can a 65-meter-long rope cut? How many meters are left?
30. Miss Li bought two badminton rackets, gave them to 70 yuan and took them back to 6 yuan. How much is each badminton racket?
3 1. Xiaoming plans to finish reading a popular science book in 6 days. How many pages does he read on average every day?
32. The students made 80 paper flowers, and tied a bunch of them every five. How many bundles can they play? Tie a bunch of flowers every four. How many bundles can you play?
33. The unit price of an exercise book is 40 cents. With this 5 yuan money, how many such exercise books can Miss Wang buy at most?
34. Xiaohua went to the store to buy drinks, bought five bottles, paid the shop assistant 100 yuan and took them back to 35 yuan. How much is each bottle of drinks?
Students go to the orchard to take part in voluntary labor. There are 40 male students and 38 female students. Every six people are divided into groups. How many groups can a * * * be divided into?
There are 26 boys and 22 girls in Class 3 (2). The class is divided into four teams on average. How many students are there in each team on average? If each student issues 2 math exercise books, how many math exercise books does the whole class need?
There are 18 boys in the school dance team, and the number of girls is twice that of boys. How many men and women are there in the dance team?
38. Nine girls visited the Observatory, and three times as many boys as girls. 1. Is a 40-seat car enough?
39. One batch of goods has already shipped 8 tons, and the rest is five times. How many tons are there in this shipment?
40. Xiaoming bought six sets of sports pictures, each set of 4 yuan, and also bought a red-painted copybook of 15 yuan. How much did Xiaoming spend?
4 1 .1 game 14: 45 and 16: 18. How long did the game last?
42. Students go boating. There are 27 male students and 29 female students, and every four people have a boat. How many boats do I need to rent?
43. Uncle Wang raised 15 geese, with four times as many ducks as geese and 38 more chickens than ducks. How many ducks does Uncle Wang keep? How many chickens are there?
44. A painting, 50 cm long and 30 cm wide. Is it enough to use a piece of wood with a length of 150 cm as a border?
45. Each bag of salt weighs 500 grams. How many grams are there in six bags of salt? How many kilograms?
46. A total of 257 ducks were raised in poultry farms, with 5 ducks in each cage. How many chickens and ducks are raised on this farm?
This factory can produce 406 teddy bears every day. According to this calculation, how many teddy bears can be produced in five days?
48. A truck travels 850 meters per minute, and a car travels 50 meters, which is more than three times that of a truck. How many meters does the car travel per minute?
49. A construction site delivered 180 bags of cement on the first day, and the number of bags delivered on the second day was twice as small as that on the first day, 19 bags. How many bags of cement were delivered the next day?
50. Each truck can carry 4 tons of goods at a time. How many tons of goods can one * * * transport five times with eight such trucks?
5 1. Each person can assemble 14 bicycles every day. According to this calculation, 8 people work for 7 days. A * * *, how many bicycles have been assembled?
52. The army has been reading books for five days, reading 24 pages every day, leaving 10 pages unread. How many pages are there in this book?
53. There are 25 boys and 23 girls in Class Two, Grade Three. Every four people get a football. How many footballs do I need to prepare?
54. Xiaohong reads a story book with 154 pages. The pages of a science and technology book read by her father are four times that of this story book, 58 pages more. How many pages of science books has her father read?
55. A tractor can transport 2 tons of goods per hour. According to this calculation, how many tons can six such tractors transport in five hours?
56.59 students made a parade. Rent a boat for every five people. * * * How many boats do you need to rent?
57. The feeding group raised 68 rabbits. If there are six cages, how many cages do you need?
58. A long rope is 25 meters, and a skipping rope is made every 2 meters. How many skipping ropes can a * * * make?
59. A story book has 86 pages. Xiaohua reads 6 pages every day. When did he finish it?
60. A table 60 yuan is more expensive than a chair, 34 yuan. How much is a set of tables and chairs?
6 1. A car leaves Shanghai at 8: 00 a.m., travels 55 kilometers at a time, and arrives in Nanjing at 6: 00 p.m. ... Do you know how far it is from Shanghai to Nanjing?
62. Uncle Wang raised 45 white rabbits, with fewer black rabbits 18. How many rabbits does Uncle Wang keep?
63. Uncle Li raised 800 chickens last year, and the number of chickens raised this year is three times that of last year. How many chickens have you raised this year?
64. The store shipped 455 kilograms of pears, and the apples shipped were three times less than pears 160 kilograms. How many kilograms of apples did this shop ship?
65. The railway from City A to City B is 560 kilometers long. A train goes from city A to city B at a speed of118km per hour. Can it arrive in 3 hours?
66. Master Wang processed 48 pieces in the morning and 56 pieces in the afternoon. According to this calculation, working five days a week, how many parts will * * * process?
67. There are 58 boys and 44 girls in the science and technology group, and the number of people in the literature and art group is twice that of the science and technology group. How many people are there in the art group?
68. Xiaoli runs to school, with an average of 84 meters per minute. Three minutes later, the journey is just halfway through. How far is it from her home to school?
69. The school basketball court is 26m long and14m wide. Run five times around the basketball court. How many meters did * * * run?
70. Master Wang and Li Shifu made a batch of parts together, of which Master Wang completed 4/9 and Li Shifu completed 5/9. Who handles more? How much more processing is needed for this batch of parts?
7 1, Xiaoming has ten apples, bought two and decided to give them to three friends. How many apples does each friend have on average?
72. Grandpa Wang's house has a rectangular vegetable field near the courtyard wall. Grandpa Wang put a fence around this vegetable field. It is known that the total length of the fence is 40m, and the width of this vegetable field is 10m. What is the area of this vegetable field?
The price of each child tricycle is 2 10 yuan. I bought four cars in kindergarten. How much is a * * *?
2. bright primary school launched the "Learn from Lei Feng" activity, with 130 participants in the lower grades, and the middle grades were twice as many as the lower grades. How many participants are there at the intermediate level? How many people are there in Grade One?
3. A total of 2/kloc-0 Sophora japonica trees were planted in the campus. The number of pine trees planted is four times that of Sophora japonica. How many pine trees have been planted?
4. There are 4 flowers, each with 12 flowers. If you take out two flowers from each bouquet, how many flowers are there in the remaining one?