1. A math contest has ***20 questions. The grading standard is: 5 points for each question, and 1 point for each question. Xiaohua took part in the competition and got 64 points. Q: How many questions did Xiaohua get right?
2. Chickens and rabbits * * * are 65,438+000 feet. If the chicken is replaced by a rabbit and the rabbit is replaced by a chicken, * * * has 86 feet. Q: How many chickens and rabbits are there?
3. A cargo ship with a load of 260 tons and a volume of 1000 m3. Now it is carrying two kinds of goods, A and B. It is known that the volume of A is 8m3 per ton and the volume of B is 2m3 per ton. How many tons should A and B be loaded separately to make full use of the load and volume of this ship?
4. The whole cross-country cycling race is 220km, divided into 20 segments, one of which is 14km and the other is 9km. How many sections are 9 kilometers long?
There are a group of chickens and rabbits. The total number of legs is twice that of the head. There are 18 rabbits. How many rabbits are there?
6. If the multiplicand is increased by 15, the product is increased by180 with the multiplier unchanged; If the multiplicand remains the same and the multiplier increases by 4, the product increases by 120. What is the original product of multiplying two numbers?
7. How many numbers does it take to compile the page number of a 695-page story book? How many numbers are used in the number "5"?
8. It takes 6889 numbers to compile a dictionary. How many pages does this dictionary have?
9. If Party A and Party B shoot and hit, Party A will get 4 points and Party B will get 5 points; If not, Party A will deduct 2 points and Party B will deduct 3 points. Each person will shoot 10, and * * * will hit 14. When the score was settled, Party A scored 10 more than Party B. How many rounds did Party A and Party B win?
10. In a math exam ***20 questions, you get 5 points for doing one question right, 1 point for doing one wrong, and no point for doing it. Xiaohua got 76 points in the exam. How many questions did he get right?
1 1. There is a truck carrying 2000 glass bottles, and the freight is calculated according to the number of intact bottles when they arrive, and each bottle is 20 cents. If there is any damage, 1 bottle return 1 yuan, and the freight is 379.6 yuan. How much glass was damaged in this transportation?
12. There are 200 chickens and rabbits, and the feet of chickens are 56 less than those of rabbits. How many chickens and rabbits are there?
13. Today, chickens and rabbits live in a cage. There are 35 rabbit heads with chicken heads and 94 rabbit feet with chicken feet. How many chickens and rabbits are there?
14. Spiders have eight legs, butterflies have six legs and two pairs of wings, and cicadas have six legs and a pair of wings. At present, there are three kinds of animals ***2 1, * * 140 legs and 23 pairs of wings. How many spiders, butterflies and cicadas are there?
There are 34 people playing on 15. 12 table tennis table. Q: How many tables are there for single and double?
16. There are 100 chickens and rabbits, and chickens have 80 more feet than rabbits. How many chickens and rabbits are there?
17. Teacher Zhang, the head teacher, took 50 students from Class Two, Grade Five to plant trees. Teacher Zhang planted 5 trees, a boy planted 3 trees and a girl planted 2 trees, a total of 120 trees. How many boys and girls did you ask?
18. One big oil bottle is 4kg, and the other two small oil bottles are 1kg. At present, 100kg oil contains 60 bottles of * * *. How many large and small oil bottles are there?
19. There are three classes *** 135 students in the third grade of Hong Ying Primary School. Class two has five more students than Class one, and Class three has seven fewer students than Class two. How many students are there in each class?
20. Teacher Liu took 4 1 students to go boating in Beihai Park, and * * * rented a boat of 10. Each big boat takes six people and each small boat takes four people. How many boats did you rent?
2 1. 20 chickens and rabbits, 44 feet long, several chickens and rabbits each.
22. In Xiaohong's piggy bank, there are 65 RMB * * * with face value of 2 yuan and 5 yuan, totaling 205 yuan. How many RMB are there in two denominations?
23. There are 50 large and small oil drums, each of which can hold 4 kilograms of oil, each of which can hold 2 kilograms of oil, and the big drum holds 20 kilograms more oil than the small drum. How many drums, big and small?
24. There are two barrels of oil weighing 86 kilograms. If you pour 4 kilograms of oil from barrel A into barrel B, the weight of the two barrels of oil is the same. How many kilograms are there in each barrel?
25. The porcelain shop entrusted the handling station to transport 800 vases, and both parties agreed that the freight for each vase was 0.35 yuan. If you break 1 vase, you will not only lose the freight, but also pay 2.50 yuan. Results After being transported to the destination, the freight for handling the station was 268.6 yuan. How many vases were broken?
26. The school held a sports meeting. There are 35 participants in grade three, and the number of participants in grade three is three times that of grade three. The number of participants in grade five is 65,438+00 more than the total number of participants in grades three and four. How many participants are there in the fifth grade?
27. Blue ink and red ink used to cost 30 cents a bottle, and Wang Ying primary school spent 12 yuan to buy several bottles every semester. Now, the price of a bottle of blue ink has increased by 5 points, while the price of a bottle of red ink has increased by 3 points. Although the quantity of two kinds of ink bottles is equal to that of each semester, they are paid more 1.8 yuan than each semester. How many bottles of each ink does this school buy each semester?
28. There are three kinds of animals in the compound. Every child wears three bells, every poodle wears a bell, and the big white goose doesn't. Xiao Ming counted that a * * * has nine heads and 28 legs, 1 1 bells. How many are there in each of the three animals?
29. The kitten took part in the math contest, did 20 questions and got 64 points. He got five points right, didn't get zero, and got two points wrong. He also knows that he did as many wrong questions as he didn't. How many questions did the kitten get right?
30. Zhao Chuanlun changed a 50 yuan RMB and a 5 yuan RMB into a 50 yuan RMB of 2.50 yuan. How many two denominations of RMB did he change?
3 1. Kindergarten bought 20 small tables and 30 small stools * * * spent 1860 yuan. It is understood that each small table is more expensive than a small stool, 8 yuan. What are the prices of small tables and stools?
Carnivores kept in zoos are divided into big animals and small animals. It is stipulated that large animals such as tigers and lions should be fed three kilograms of meat at a time, and small animals such as foxes and bobcats should be fed one kilogram every three heads. There are 100 animals in the zoo, and they need to be fed 100 kg of meat every time. How many animals are there?
33. Xiao Zhang has 20 yuan 20: 50 1 RMB *** 12 yuan RMB. How many three denominations of RMB are there?
34. Chickens and rabbits are cages. There are 26 more chickens than rabbits, with 274 feet. How many chickens and rabbits are there?
A TV factory produces 500 TV sets every day. In the quality appraisal, each qualified TV set will be deducted 5 points, and each unqualified TV set will be deducted 18 points. If you call 993 1 minute in four days, how many qualified TV sets have been produced in these four days?
All the students in Class Two, Grade Six planted 180 trees on Arbor Day. On average, each boy planted 5 trees and each girl planted 3 trees. It is also known that there are four more girls than boys. How many boys and girls are there in this class?
37. Cui went hunting in the mountains, killing two rabbits with five shots and six pheasants with nine shots. He shot 25 shots and got 14 prey. How many animals did everyone kill?
Sorry, I can't help you.