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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?
25. There are 250 monkeys in the zoo, among which the male is 9 times as many as the female. How many male monkeys are there in the zoo?
26. Children of one grade line up. If they line up in a row of nine people, they can line up in 38 rows, leaving eight people. If there are eight of them in a row, how many rows can they row? How many people are left?
27. Children in three classes make toys. A class made 48 toys and gave them to 15 kindergarten. The rest are evenly distributed to the first three classes of senior high school. How many can I get in each class?
28. In the sports meeting, Xiaoming jumped rope 297 times in 3 minutes and Xiaohong jumped rope 2 minutes 170 times. Who jumps fast, how many times a minute on average?
29. A Story has 265 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?
30. Uncle Li keeps 200 chickens. On the first day, he sold 128 chickens. On average, each chicken can sell 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?
3 1, the fruit shop sent a basket of watermelons, a ***920, each basket can hold 8, and now there are 120 baskets, is that enough?
32. Xiaoming can type 279 words in 3 minutes and Xiaohua can type 432 words in 4 minutes. Guess who can type fast? If Xiao Ming typed an article and it took 5 minutes, how many words were there in the article?
The flower shop brought 600 lilies, roses and chrysanthemums. Every three lilies and four roses can be tied into a bunch of five chrysanthemums. How many bunches can these flowers be tied into at most?
Which is more expensive, four poplar saplings at 34.48 yuan or three pine saplings in 63 yuan?
35. Teacher Zhang took 100 to the mall and bought three small soccer balls, and found 7 yuan. Do you know how much each little football is worth?
36. Uncle Li has 82 cocks and 558 hens, and the number of chickens raised is five times that of ducks. How many chickens and ducks does he have?
37. A highway is 450 meters long. Trees were planted on one side of the road. How many trees should workers plant every 5 meters? (Planting both ends)
38. The workshop of a clothing factory made 285 clothes from 8 am to 15 am. How many clothes do they make per hour on average?
39. Xiao Mahu, surnamed Zhao, took the divisor 7 as 9 when calculating a division, and the quotient became 14. Would you please tell him the correct answer?
40. Mr. Wang spent 703 yuan on three books: Chinese, Mathematics and English, one for Chinese 9 yuan and one for Mathematics 6 yuan. He bought a total of11books. If you buy the same number of three books, how much is the English book?
4 1. Primary school starts 1 September, and the holiday time is 654381October 20th. How many days are there in the whole semester?
42. Xiaoming eats fruit. He eats half the fruit in the fruit basket every day. On the fourth day, he found that there was only one fruit left after eating. How many fruits were there in the basket at first?
43. Xiao Ming saw a formula as follows: 7□4÷8 Q: How many numbers are written in it, and the quotient is two digits?
44. There are five basketballs in the gym, and one shelf can hold six rows. Every three shelves occupy a sports room. How many sports rooms does it take to put 200 basketballs?
45. Children pick apples. Five people picked it for seven days, and one * * * picked 735 Jin of apples. How many kilograms does each person pick every day?
46. Children line up to take the bus, Xiao Zhao is on the 54th, and Xiao Liu is on 138. Each bus has six seats. Which bus are they on?
47. A dress 158 yuan, a pair of pants 165 yuan. All clothes are sold at half price. How many clothes can I buy with 900 yuan (note: clothes and pants add up to one)?
48. There are five cowsheds in the cattle farm, and there are six cows in each cowshed. Each cow eats18kg of grass on average every day. How much grass did these longicorn beetles eat?
49. Class 4, Grade 3 bought the following items with the 200 yuan class fee: skipping rope 4 yuan, football 9 yuan and checkers 6 yuan. Sorry, the money has run out. What's your plan?
50. I want to buy everything above, and the more things I want to buy, the better. Please list your plan?
5 1. In the above question, if you want to buy at least 10 football and then buy as many checkers as possible, and you have to spend all your money, how many checkers can you buy at most?
52. In a certain year, June 25th is Wednesday. What day is July 12 this year?
Children can recite three words every day. How many words can they remember in the first quarter of 2008?
54. Three children asked each other about their birthdays. Xiao Qiang said that my birthday was born for the first time in this century. Xiao Ming said that we are the same age, but I have only had two birthdays so far. Xiaohong said that I was in the same year as you, and the day after giving birth was Children's Day. What year, month and date are their birthdays?