There is an urgent need for 30 math problems in grade three of primary school.

Math application problems in grade three (I)

1. There are 15 baskets of apples and 10 baskets of pears in the store. The number of baskets of bananas is four less than the total number of apples and pears. How many baskets of bananas are there?

2. There are 24 poplars and 18 locust trees in the campus. The number of willows is 6 more than the total number of poplars and locust trees. How many willows are there?

3. Xiaohua has 12 stamps, Xiao Ming has 15 stamps, and Xiao Lin's stamps are twice as many as Xiao Ming's total in Oubana. How many stamps does Xiao Lin have?

4. There are 36 story books and 2 1 science and technology books in the book corner of Class One, Grade Three. These two books are more than comics 14. How many comic books are there?

5. The school bought 12 bottles of red ink. The black ink is 3 bottles less than the red ink and 2 times more than the blue ink. How many bottles of blue ink are there?

6. Mom bought some fruits. There are 20 apples, 5 fewer pears than apples and 2 more oranges than pears. How many oranges are there?

7. On National Day, students made 30 yellow flower rings, with 12 green flowers missing and 54 red flowers added. How many times is the red wreath more than the green one?

8. There are 35 school choirs, with 7 more dancers than choirs. How many people are there in the two groups?

9. There are 12 people playing basketball on the playground, and there are 3 fewer people playing football than basketball. How many people are playing basketball and football?

There are five tigers in the zoo, and the number of deer is three times that of tigers. (1) How many deer are there than tigers? (2) How many deer and tigers are there?

Class 3 1 1 Class 45, including 26 girls. How many boys are less than girls?

12, Xiaohong and her brother add up to 20 years old. My brother is 12 years old. How old is my brother than Xiaohong?

13. There are 8 big monkeys and 15 small monkeys in the zoo. Peacocks are less than monkeys 16. How many peacocks are there?

14. My sister has 9 science books and 23 story books. My sister has three times as many books as my sister. How many books does my sister have?

15. There are 8 buses and 5 trucks in the parking lot. There are eight more cars than buses and trucks combined. How many cars are there?

16, a batch of bicycles arrived at the store. On the first morning, 10 was sold, in the afternoon, 12 was sold, and on the second day, 17 was sold. How many cars were sold less than the first day?

18, a basket of pears weighs 25 kilograms, a basket of apples weighs 5 kilograms, a basket of bananas weighs 10 kilograms, and how many kilograms does a basket of bananas weigh?

19, kindergarten bought 15 boxes of pencils, bought 3 more crayons than pencils, and bought 2 times more watercolor pens than crayons. How many boxes of watercolor pens did you buy?

2 1, students do group gymnastics. There are 6 rows of girls with 8 people in each row and 32 boys. How many more girls than boys?

22. There are 24 gray rabbits and 32 black rabbits in the rabbit farm, and the number of white rabbits raised is three times that of gray rabbits. How many white rabbits are there than black rabbits?

23. The students went to visit the exhibition. There are 48 students in grade one, and there are more students in grade two 16 than in grade one, and 20 students are less than in grade three. How many people are there in grade three?

24. The school bought 3 packs of chalk, each pack 12 boxes, and distributed them to 9 classes on average. How many boxes were assigned to each class?

25. A basket can hold 5 kilograms of fruit. Now there are 25 kilograms of grapes and 30 kilograms of bananas. How many baskets do you need?

26. There are 85 young pioneers in the third grade, and 27 more in the fourth grade than in the third grade. How many young pioneers are there in two grades?

27. There are 16 sheep on the hillside, 4 more than goats. How many sheep are there?

28. Xiaoming kicked the shuttlecock in Obana, and Xiaohua kicked it 23 times. Xiaoming plays twice as much as Xiaohua. How many times did they kick?

29. Aunt Li has seven cocks, and the hens she raises are four times as many as cocks. How many hens are there?

30. This shop has a batch of washing machines. Eight sets were sold, and the rest were sold three times. How many washing machines are there?

3 1 .46 poplars and 0/8 poplars. How many poplars are less than willows?

32. A book has 56 pages, and Xiao Ming has read 29 pages. If you read 9 pages a day, how many days will it take you to finish the rest?

33. Master Wang plans to process 50 machine parts, working for 6 hours and processing 7 pieces per hour. How much is left unfinished?

34. There were 23 passengers on a bus, 4 people got off at Shengli Street, and others got on the bus. There are 28 passengers in the car at this time. How many people got on the bus?

35. I bought three bags of rice in the canteen, each weighing 25 kilograms. I ate some of them and left 30 kilograms. How many kilograms did you eat?

36. The school science and technology team 18 people, the photography team 9 people, and the chess team is twice as large as the science and technology team. How many times are there in the chess team than in the photography team?

37. There are 8 basketballs and 20 hairballs in the gym. The total number of basketball and football is five less than that of badminton. How many footballs are there?

38. It takes Xiaoming 26 minutes to go to school by bike. If you ride a bike when you go and walk when you come back, it will take 40 minutes in total. How many points does it take to walk back?

39. There are some colored chalk. Yellow chalk is 6 more than green chalk, and red chalk is 8 more than yellow chalk. The number of branches of red chalk is exactly twice that of green chalk. How many pieces of green chalk, red chalk and yellow chalk are there?

40. There are four cranes in the lake, the number of geese is three times that of cranes, and the number of ducks is 15. How many cranes, geese and ducks are there?

4 1. There are two baskets of oranges. The first basket weighs 26kg, and the second basket weighs 18kg. How many kilograms of oranges do you need to take out from the first basket and put them in the second basket to make the two baskets equally heavy?

42. There are 80 goats and 1 10 dairy goats in the livestock farm. The number of sheep raised is more than the total number of goats and dairy sheep 120.

? Ask the question of two-step calculation and then answer it. )

43. There are two bookshelves on each floor, and there are 40 books. How many books are there? Add a condition before you answer. )

44. The school bought 8 boxes of pens, each box 12, and each 6 yuan, in order to reward students with "three good". How much does it cost to share? (Answer in two ways. )

45. A car travels for 3 hours 120km. According to this calculation, how many kilometers is the five-hour journey? (Step by step first, then comprehensive calculation.