2. A cuboid container with a bottom area of 16 square decimeter and a water height of 6 decimeters. Now put an iron block with a volume of 24 cubic decimeters. How high is the water surface at this time?
3. Stack a cuboid with 2 100 cubes with a side length of 1cm. Its height is 1cm, and its length and width are greater than its height. What is the circumference of its bottom?
On a bookshelf, the number of books in the upper layer is three times that in the lower layer. If the upper layer moves to the lower layer 18, then the books on the two layers are equal. How many books are there on the upper and lower floors?
Answer:
1.7.5/( 100^7.5)=0.05m
2.( 16 6+24)/ 1 = 7.5 decimeter
3. The cuboid is 2 100 cubic centimeter and the height is 10 centimeter, so the length multiplied by the width is 2 10 centimeter, so the widened length is 15+ 14=29.
4. the upper book =X, the lower book =Y, X=3Y, X- 18=Y+ 18, so X=54, Y= 18.
The processing of a batch of parts was originally planned to be completed in 15 days.
1. The processing of a batch of parts was originally planned to be completed in 15 days, but actually 30 pieces were made every day. Results It took only 10 days to complete the task. How many parts are there in this batch?
2. 14 kg of soybean is equal to 8 kg of peanut. Known 1 kg peanut ratio 1 kg soybean price 1.2 yuan. What is the unit price of soybeans and peanuts?
3. A rope is folded three times and then wound around the tree 10 cm. If it is 20 cm around the tree after 40% folding, find the circumference and rope length of the tree.
4. All the students in one class subscribed to two newspapers, 32 to math newspapers, 40 to composition newspapers and 26 to English newspapers. Q: How many people subscribe to both math newspapers and English newspapers?
1.
30× 10=300 (piece)
300( 15- 10)= 60 (piece)
60× 15=900 (piece)
I thought the same thing.
Why is one completed in 10 day and the other completed in 15 day? Because we actually make 30 more pieces every day, and 10 makes 300 more pieces every day. Because of these 300 pieces, we will actually be five days less than the original plan, and we will just make 300 pieces in five days, so we use 300÷( 15- 10)=60 (pieces) to get the original plan date.
2.
8× 1.2=9.6 (yuan)
9.6( 14-8)= 1.6 (yuan)
1.6+ 1.2=2.8 (yuan)
I thought the same thing.
Since 1kg peanut is more expensive than 1kg soybean 1.2 yuan, then 8kg peanut should be more expensive than 8kg soybean by 9.6 yuan. Now their prices are equal, that is to say, 9.6 yuan is all included in the remaining 6 Jin of soybeans, otherwise it can't be equal, so we use 9.6÷ (14-8) = 65438.
3.
(10+20) ÷ (1/3-1/4) = 360 (m) rope length.
360×1/3-10 =110 (m) perimeter of the tree.
I thought the same thing.
Profit and loss problem's formula can be applied and solved.
4.
(32+40+26)÷2=49 (person)
49-40=9 (person)
I thought the same thing.
Because everyone subscribes to two newspapers, everyone has to count twice, so use (32+40+26)÷2=49 (people) to calculate a * * *, with 49 people, and then ask how many people subscribe to both the math newspaper and the English newspaper? If he subscribes to these two newspapers, he can't subscribe to the composition newspaper, so he uses 49-40=9 (person)
I can't find the answers to the following questions. ...
Addition and subtraction of 1. fraction
1, the fifth grade students participate in extracurricular groups, and the number of people participating in science and technology groups accounts for the whole grade, while the number of people participating in literary and art groups stands at the total number. What percentage of these two groups of students make up the whole grade?
2. Two tractors plow the fields together. One tractor plows this field, and the others plow with small tractors. How much of this land has been cultivated by small tractors? How much of this land is cultivated by big tractors instead of small tractors?
A road team built kilometers on the first day, kilometers on the second day and kilometers on the third day. How many kilometers were built in three days?
4, a vegetable field, it grows eggplant, peppers and the rest cucumbers. How many cucumbers are planted in this land?
5. There are three colors of sticks, red, yellow and blue. The red stick is meters longer than the yellow stick, and the blue stick is meters shorter than the yellow stick. How many meters is the difference between the red stick and the blue stick? If the blue stick is meters longer than the yellow stick, how many meters is the difference between the red stick and the blue stick?
6. Before the completion of Nanjing Yangtze River Bridge, it took several hours to cross the Yangtze River by train and ferry, but now it only takes several hours to cross the bridge. How many hours does it save to cross the river now?
7. Two construction teams build a project, with Team A completing the project every day and Team B completing the project every day. How many parts of this project can two engineering teams complete in one day?
8. Woodland Bay is planted on the mountain. It is planned to plant fruit trees, bamboo and pine and cypress, with a total area. What percentage of the total area is planted with fruit trees and bamboo? What percentage of the total area is pine and cypress?
9. The school brought a pile of sand. How many tons does it take to build a wall, how many tons does it take to build a sports ground, and how many tons are left? How many tons does a * * * use? How many tons of sand was there before?
10. Divide six apples of the same size to eight children equally, and each child gets a big piece and a small piece. How is it divided? How much does each child get?
1 1. The coal used in the factory canteen in the first quarter was 13 tons, less than that in the second quarter and more than that in the third quarter. How many tons of coal were used in the third quarter?
12, Wang Ying is one meter tall, one meter shorter than Zhang Li, Hua Qin is one meter shorter than Zhang Li, who is taller, Hua Qin or Wang Yingbi? How high is it?
13, Li Lin drank a glass of milk, then filled it with water, drank another glass, filled it with water, drank half a cup, filled it with water, and finally drank all the cups. Does Li Lin drink more milk or water?
14. Shengli Village built a canal. On the first day, kilometers were built, and on the second day, kilometers were left. How long is the canal after it is completed?
15, build an expressway, the whole road was built on the first day, and the whole road was built on the second day. How much is left in the whole road?
16, a class, students spend several hours doing experiments, teachers spend several hours explaining, and the rest of the time students do their homework independently. Assuming that each class is hours, how many hours does it take students to finish their homework independently?
17, xinhua primary school held a sports meeting, and each person only participated in one event. Grade five students participate in track events, field events and group gymnastics performances. What percentage of the whole grade participated in the group gymnastics performance?
18, a city held a math contest and won several first, second and third prizes. Those who won the first and second prizes accounted for the total number of winners, and those who won the second and third prizes accounted for the total number of winners. What percentage of the total number of people won the second prize?
Second, fractional multiplication.
1. The side length of a square is meters. What's its circumference?
2. How much oil does one kilogram of soybean contain, and how much oil does 100 kilogram of soybean contain? 1 ton of soybeans?
3.( 1) How many tons of coal are used every day and how many tons are used in three days?
(2) A pile of coal is used every day, and how much is used in three days?
A train runs at a speed of 87 kilometers per hour, and it takes one hour from Station A to bilibili. How long is the railway between Station A and bilibili? It takes 30 minutes from bilibili to Station C. How long is the railway from bilibili to Station C?
5. A section of steel is 4 meters long, and 15 such parts have been made. How many meters are left?
6. Shengli Road 1 km, Yan 'an Road is twice as large as Shengli Road. How many kilometers is Yan 'an Road longer than Shengli Road?
7. The area of a rectangular desktop is 1 m2. A square desktop with a side length of meters. How much is the area of rectangular desktop larger than that of square desktop?
8. A factory will assemble 195 machine tools. After six days of assembly, 33 units are still not installed. How many units are installed on average every day? (column equation solution)
9. There are two baskets of apples. The first basket weighs 30 kilograms. If you take kilograms from the first basket and put them in the second basket, the apples in the two baskets weigh the same. How much do two baskets of apples weigh?
10, an object weighing 1 kg on the earth, only one kilogram on the moon. A classmate weighs 36 kilograms. If he reaches the moon, how many kilograms will he weigh less than on the earth?
1 1, there are 44 students in Class One, Grade Five, and the chorus takes up the whole class. How many people join the choir?
12. A duck weighs 3 kilograms and a chicken belongs to a duck. How much does this chicken weigh?
13, a volleyball is priced in 60 yuan, and the price of basketball is volleyball. What is the price of basketball?
14, the road team planned to build a road for 4 kilometers, which has been repaired. How many kilometers have you repaired?
15, a whale is 7 meters long, and the head is occupied. How many kilometers is the whale's head?
16, total length of chengdu-kunming railway1100km, and bridges and tunnels account for about the total length. How many kilometers are the bridges and tunnels?
17. A rectangular piece of land is 24 meters long and 24 meters wide. What is the area of this land?
/kloc-24 people from grades 0/8 and 5 participated in the art group.
(1) There are twice as many people in the math group as in the art group. How many people are there in the math group?
(2) The number of choirs belongs to the art troupe. How many people are there in the choir?
19, the incubation period of geese is 30 days, the incubation period of ducks is for geese, and the incubation period of chickens is for ducks. How many days is the incubation period of chicken?
20. Three students jumped rope, Xiaoming jumped 120 times, Xiao Qiang jumped Xiaoming's and Liang Xiao jumped Xiao Qiang's. How many times did Xiao Liang jump?
2 1, long-distance running exercise, running 3 kilometers, running the same as Xiao Gang, running the same as a bear. How many kilometers did Xiao Gang and Xiao Yong run?
22. A car line 1 km consumes kilograms of fuel, and a truck line 1 km consumes three times as much fuel as a car. How many kilograms does the freight line 1 km consume? Ok, how many kilograms does 1 km consume more fuel than a car?
23. Grade five students collect 180 cans, of which class one collects and class two collects. How much do you charge for each class?
24. A story book has 96 pages, and Xiaolan has read 43 pages. Xiaohua said, "The remaining pages are less than this book 15 pages." Xiao Xin said, "There are five pages left in this book." Obana Xiao Xin, who's right?
25. Peanut 16 hectare was planted in Zhangzhuang Township last year, and the planting area this year is the same as last year. How many hectares have been planted this year?
26. Students from three classes in Grade Five take part in planting trees. Class One planted 39 trees, Class Two planted one, and Class Three planted five fewer trees than Class Two. How many trees have Class Three planted?
27. The ball falls freely from a height, and the height of the rebound after each contact with the ground is the height of the previous fall. If the ball falls from a height of 35 meters, what is the height of the second rebound?
28. The canteen bought 2,700 Jin of radish, and part of it was transported to the canteen. It is known that you have eaten the food delivered. How many kilograms have you eaten?
29. Xiaohong weighs 42kg and Xiaoyun weighs 40kg. The weight of Xiao Xin is equivalent to the sum of Xiaohong and Xiaoyun. How much does Xiao Xin weigh
30. The fifth grade students collected 42 kilograms of tree species, and the fourth grade collected less than the fifth grade. How many kilograms of tree species are collected less in the fourth grade than in the fifth grade? How many kilograms of tree species were collected in the fourth grade?
3 1. There are 128 students in the fifth grade of Guangxin Primary School who have reached the standard of physical exercise. The "qualified" students are girls, and the "qualified" boys account for a few points of the total number of fifth-grade students?
32. In the fifth grade, there are 36 students in the math group, the Chinese group is the math group and the sports group is the Chinese group. How many people are there in the sports team? (Tell me who is regarded as the unit "1" in each step of calculation. )
33. The typist types a manuscript every day and finishes it. How many parts of the book did they finish in five days?
34. The school canteen used 640 tons of water in September. The planned water consumption in September was 10, but the actual water consumption in September was less than originally planned. How many tons of water was saved in 10 compared with the original plan?
35. There is a sheet piling with * * * 120. First use, second use. How many times has this stack of paper been used? How many sheets of paper have you used twice?
36. Insects often flap their wings when flying. Grasshoppers can vibrate their wings 18 times per second, and bees can vibrate their wings 236 times per second.
(1) How many times do locusts flap their wings per second than bees?
(2) How many times do bees flap their wings per second than locusts?
37. Students from three classes in Grade Five help the library to make up books. Class one has repaired 54 books, while Class two has repaired 54 books.
Class three repairs twice as much as class two. How many repair books are there in Class Three?
38. Look at the picture and make up an application question, then answer it.
Third, fractional division.
1. Chickens in Jia Xiaodong lay eight eggs a day, weighing one kilogram. How many kilograms does each egg weigh on average?
2. The circumference of a square is meters. What is its side length?
3. Uncle Zhang goes to work by bike at a speed of 9 kilometers per hour, 1 hour. How many kilometers?
4. A store packed 120kg fruit candy in plastic bags. If each bag is 20 kilograms, how many bags can these fruit candies be packed?
5. The store delivers 120 bicycles. If the total quantity is sold on the first day, the number of vehicles sold on the second day is equivalent to that on the first day. How many cars were sold the next day?
6. transport a pile of goods by car. If this pile of goods is shipped every day, how many days can it be shipped? How many days can this pile of goods be shipped every day?
7. In the following questions, which quantity should be regarded as the unit "1"?
(1) The number of black rabbits is the number of white rabbits.
(2) The number of black rabbits is equal to that of white rabbits.
(3) White rabbits are only black rabbits.
8, a bucket of water, used to it, just 15 kg. How much does this bucket of water weigh? (to be tested)
9. Wang Xin bought a book and a pen. The price of a book is the price of a pen. What is the price of a pen?
10, the fastest speed of the car 140 km, which is equivalent to the speed of supersonic aircraft. How many kilometers does this supersonic plane fly per hour?
Zhuang Lin has a 4-hectare orchard. How many hectares does this apple tree cover?
(2) Zhuanglin has 3 hectares of apple trees, accounting for the total area of the orchard. What is the total area of this orchard?
12 and (1) have a set of meshing gears. The pinion has 28 gears, which is the number of teeth of the big gear. How many gears does the big gear have?
(2) The pinion rotates 400 times per minute, and the revolution of the big gear per minute is the revolution of the pinion. How many turns does the big gear make per minute?
13, Xiaoli has more pictures than Xiaolan 12, which is exactly equivalent to the number of Xiaolan. How many pictures does Xiaolan have? How many pictures does Xiaoli have?
14. A shampoo, large bottle 450g, small bottle 125g. How many times is the big bottle bigger than the small one? What is the score of a big bottle in a small bottle?
15, according to the following two pictures, make up an application problem and solve it.
There are 16 and11in the fifth grade, which is equivalent to the number of students in the fourth grade. How many people are there in Grade Four and Grade Five?
17, Xiaogang's family bought a bag of flour and ate 15 Jin, which happened to be the same bag of flour. How many kilograms is left in this bag of flour?
18, which of the following questions should be regarded as the unit "1"?
(1) A is B.
(2) B is a. ..
(3) B is equivalent to A. ..
There are 45 students in Class One, Grade Five, including 20 girls. What percentage of girls are in the class?
(2) There are 45 students in Class One, Grade Five, girls. How many girls are there?
(3) There are 25 boys in Class One, Grade Five, accounting for the whole class. How many students are there in the class?
20. Poplar 144 trees are planted in the campus, and the number of planted pine trees is poplar. How many pine trees are planted on campus?
2 1. The school bought 30 bottles of blue ink and 24 bottles of red ink. How many times is blue ink more than red ink?
22. There are 40 calves on the farm, which is the number of big cows. How many big cows are there on the farm?
23. The following questions only list formulas.
One number is 36. What's its number?
One number is 20. What's this number?
(3) The number A is 36, the number B is 20, and how many times is the number A? What fraction of a number is b?
24. China has a vast territory, with a distance of 5,500 kilometers from north to south and a distance of several kilometers from east to west. How many kilometers is the distance between east and west?
25( 1) The speed of a car is 40 kilometers per hour, and the speed of a swallow is twice that of a car. How many kilometers do swallows fly per hour?
According to the above results, complete the conditions of the following questions and then answer them.
The car travels 40 kilometers per hour. What fraction of the speed of a car is that of a swallow?
(3) (), the speed of the car is the speed of the swallow. How many kilometers does this car travel per hour?
(4) (), the speed of the car is the speed of the swallow. How many kilometers do swallows fly per hour?
26. Shengli Primary School students donated 360 books to support the disaster-stricken areas, including 90 books donated by fifth-grade students. What percentage of books donated by fifth-grade students accounts for the total number of books donated by the whole school?
27. Xinzhuang Primary School received 3 tons of cabbage and 2 tons of radish, accounting for as much as the total harvest of the school vegetable garden. How many tons of cabbage and radish each account for the total harvest of the school vegetable garden?
28. There are two digits, and the tenth digit is a single digit. The tenth digit plus 2 equals the fourth digit. What is this two-digit number?
29. There are 30 people in the art group of Guangming School. The number of biological group belongs to the art group, and the number of model airplane group belongs to the biological group. How many people are there in the model airplane group?
30. The number of the bright primary school model airplane group belongs to the biology group, and the number of the biology group belongs to the art group. There are 8 people in the model airplane group and how many in the art group?
3 1. The shop brought some fruit. The number of pears is the number of apples, and the number of apples is the number of oranges. Yunlaili 15
Basket, how many baskets of oranges were sent?
32. There are four good students in Class Four, Grade Five, accounting for the whole class. The number of students in Class Four in five years is the number of students in Grade Five. How many people are there in the fifth grade?
There are 36 cars in the parking lot, four times as many as big cars. The number of buses is the number of trucks. How many trucks are there?
34. The bottom of the trapezoid is the upper bottom, and the upper bottom is high. Its bottom is 20 cm. What's its height?
35. There are 15 locust trees in the school. There are both locust trees and willow trees in the number of poplars. How many willows are there?
36. The results of the fifth national census in 2000 showed that the three most populous provinces in China were Henan, Shandong and Guangdong. Henan has a population of about 92 million, and the population of Guangdong belongs to Henan and Shandong provinces. How many people are there in Shandong?
37. A train runs at a speed of 48 kilometers per hour. According to this calculation, it takes 3 hours to drive from A to B. How many kilometers is the railway between A and B?
38. A car delivers goods to the mountain area at a speed of 42 kilometers per hour and arrives in one hour. It only took a few hours to go back the same way. How many kilometers per hour do you drive on average?
39. A field was plowed with a tractor, and hectares were plowed in 45 minutes, which is equivalent to the total area of this field. How many hectares is this land?
40. The number of students in Class One of Grade Five is the number of students in this grade, and the number of students in Grade Five is the number of students in the whole school. What is the number of fifth-grade students in the school? If there are 48 students in Class One, Grade Five, how many are there in the whole school?
4 1. The store sells two baskets of oranges, each weighing 24 kilograms, accounting for the total fruit sold. Bananas sold account for the total amount of fruits sold. How many kilograms of bananas are sold in the shop?
42. Solve the problem first, and then compare the similarities and differences of the three problems.
(1) Vega runs 14 kilometers per second, and Altair runs 26 kilometers per second. How much faster does Vega run than Altair?
(2) Vega runs 14 km per second, which is the speed of Altair. How many kilometers does Altair run per second?
(3) Altair runs 26 kilometers per second, and Vega runs at the speed of Altair. How many kilometers does Vega run per second?
Respondents added 2009-08-1410: 48 43. There are 28 "three good" students in grade five, which is the number of students in grade five. The number of fifth-grade students accounts for the total number of students in the school. How many students are there in the school?
44. A county afforested 1260 hectares last year, as originally planned. How many hectares were originally planned for afforestation? (After solving, this problem is adapted into a multiplication application problem and a division application problem.)
45. The number of geese raised by a rural professional household is chickens, not ducks. Raise 480 chickens, how many ducks?
46. Team A and Team B build a road. Team A built 16 km, accounting for the length of the road, and team B built the length of the road. How many kilometers did Team B repair?
47. In the school sports meeting, the number of girls participating in a class accounts for the whole class, and the number of boys participating in the class accounts for the whole class. There are four more boys than girls in the competition. How many people are there in this class?
48. There are two bags of rice. One bag of rice is 10 kg. If you pour from bag B to bag A, the weight of the two bags of rice is the same. How many Jin of rice was originally contained in bag B?
Fourth, fractional elementary arithmetic and application problems
1. Two trains leave from two places at the same time. Car A is 62 kilometers per hour, and car B is 70 kilometers per hour. A few hours later, they met. How many kilometers is the railway between these two places?
2. Two machines produce the same parts. The first machine produces 20 parts per hour, and the second machine produces 80 parts per hour. How many hours does it take for two machines to produce 98 parts at the same time?
3, a suit 160 yuan, in which the price of trousers is the highest. How much are the coat and trousers?
4. The typist typed a manuscript, the first day typed 12 pages, and the next day typed 13 pages. The number of pages typed in these two days accounted for the manuscript. How many pages are there in this manuscript?
Xiaohua collected 60 more pictures on the matchbox than Xiaoming collected. The pictures on the matchbox collected by Xiaoming are Xiaohua's. How many pictures are there on the matchbox collected by Xiaoming in Oubana?
6.( 1) A construction site uses cement 18 tons in the first half of September and cement in the second half of September. How many tons of cement will be used in September?
(2) A construction site used 34 tons of cement in September, of which the cement used in the second half of the year was the first half. How many tons of cement were used in the first half month?
7. An engineering team built an expressway. On the first day, 38 meters were built, and on the second day, 42 meters were built. The next day, the road was much more repaired than the first day. How long is this road?
8. A desk is more expensive than a chair 10 yuan. If the unit price of chairs is the unit price of desks, what is the unit price of desks and chairs?
9. There is a batch of coal in the harbor. First, use 8 large trucks, each with 5 tons; The rest will be transported by five small trucks, each with a big truck, just once. How many tons is this batch of coal?
10. In order to celebrate the school anniversary, Class 3, Grade 5 will make 180 flags, which have been made. How many flags have not been made?
1 1. Made a machine tool. In the past, each machine used 2 tons of steel, but now each machine uses less steel than before. How many tons of steel does each machine tool use now?
12, (1) A farm has 1200 ducks. There are more chickens than ducks. How much more chickens are raised than ducks?
(2) A farm has 1200 ducks. There are more chickens than ducks. How many chickens are there?
13, (1) A rope is 2 meters long. How many meters are left after subtraction?
(2) A rope is 2 meters long. How many meters is left after subtracting meters?
14, Li Xiaohong read an 80-page story book. On the first day, he read the whole book, and the next day, he read the whole book. How many pages are left to read?
15, the original price of a kind of clothing 105 yuan, and now the price has been reduced. What is the current price?
16. A soap factory produced 350,000 boxes of soap in September. 10 produced more soap than in September. How many boxes of soap are produced in October?
17, the students took part in sending bricks, and gave 1500 pieces in two days. How many pieces will be shipped on the first day and the second day?
18. A car factory planned to produce12,600 cars last year, but completed the annual plan in the first half of the year and completed it in the second half. How many cars were produced last year?
19, a telephone pole, the whole length of the buried part, 5 meters above the ground. How long is this telephone pole?
20.( 1) The artificial earth satellite runs 8 kilometers per second, which is equivalent to a spaceship. How many kilometers does the spaceship run per second?
(2) The artificial earth satellite runs 8 kilometers per second, which is slower than the spacecraft. How many kilometers does the spaceship run per second?
2 1, (1) The total output of vegetables in a county last year was 7.2 million Jin, which is the total output of vegetables this year. What is the total output of vegetables in the county this year?
(2) Last year, the total output of vegetables in a county was 7.2 million Jin, an increase over last year. What is the total output of vegetables in the county this year?
22. If a livestock farm sells the number of beef cattle, there are still 250 left. How many beef cattle are there in this livestock farm?
23. County A afforested 65,438+0,260 hectares last year, exceeding the original plan. How many hectares were originally planned for afforestation?
The tallest animal in the world is the giraffe. There is a giraffe 5 meters high, taller than an elephant. How tall is this elephant?
25. The area of a square land is 20 square meters, and the area has increased after the transformation. What is the area of this square at this time?
26. Dolphins can swim 70 kilometers per hour, faster than blue whales. How many kilometers can a blue whale swim per hour?
27. The weight of silver per cubic centimeter is lighter than that of lead per cubic centimeter. How many grams does lead weigh per cubic centimeter?
28. Analyze the quantitative relationship of the following questions and list formulas or equations (not calculated).
(1) There are 60 willows in the campus, and there are more poplars than willows. How many poplars are there?
(2) There are 60 willows on campus, less than poplars. How many poplars are there?
(3) There are more poplars than willows on campus. There are 75 poplars. How many willows are there?
(4) There are fewer willows than poplars on campus. There are 75 poplars. How many willows are there?
29.( 1) There are two wires. One bundle is120m long, which is shorter than the other. How long is the other bundle of wires?
(2) There are two wires. One beam length120m is longer than the other. How long is the other bundle of wires?
30.( 1) Original price of a VCD player 1260 yuan. Now the price is lower than before. What's the current price?
(2) At present, the price of a VCD player is 924 yuan. Now the price is lower than before. What is the original price?
3 1. There are 15 pear trees and 20 apple trees in the school orchard.
(1) How many apples are there than pears?
(2) How many pear trees are fewer than apple trees?
(3) How many apple trees are there than pear trees?
(4) How many pear trees are fewer than apple trees?
32. This store ships120kg apples, and ships more pears than apples. How many kilograms of pears did the shop bring?
Xiaojun's airplane model flew in the air for 2 minutes, which was longer than Xiaofeng's airplane model. How long did Xiaofeng's model plane fly in the air?
34. This shop delivered 550 kilograms of flour, but delivered less rice than flour.