60 children\’s thinking training questions for the lower grades of primary school, give your children a practice

1. Xiao Ming is 7 years old this year. His mother is 21 years older than Xiao Ming. His father is 5 times older than Xiao Ming. How old is his mother this year? Where is dad? 2. There are 28 girls in Class 2(3), and there are 12 boys less than girls. How many boys are there? How many boys and girls are there in total? 3. The students planted 25 trees this morning, 19 trees in the afternoon, and 38 trees yesterday. How many more trees are there today than yesterday? 4. Chang\’an No. 1 Primary School originally had 39 male teachers and 25 female teachers, but 8 were transferred. How many teachers are there now in Chang\’an No. 1 Primary School? 5. There are 8 willow trees planted in the front, back, left and right of the flower bed. How many willow trees are planted in total? 6. Each car can seat 4 people, and the bus can seat 25 people. There are 3 cars and 1 bus. How many people can sit in total? 7. Xiaohong reads a book with 90 pages, and reads an average of 8 pages a day. After reading it for 9 days, how many pages are left? 8. Xiaohua has 5 bags of candies, each bag has 6 candies, and there are 3 more candies. How many candies does Xiaohua have in total? 9. There are 25 boys, 21 girls, and two teachers. Is a 50-seater car enough? 10. There are ten floors in a building, each floor is 4 meters. Xiao Ming is standing on the balcony on the 8th floor. How many meters above the ground is he? 11. There are 6 small snails, 3 times as large and 2 less ants. How many ants are there? 12. There are 36 boxes of pears and 37 boxes of apples. The small truck can transport 70 boxes at a time. Can these pears and apples be transported at one time? 13. A large towel costs 38 yuan. If you give 50 yuan to the salesperson, how much yuan should you get back? 14. Xiaohong’s family bought a box of red Fujis. After eating 18 of them, there were 6 left. How many red Fujis were there in the original box? 15. The teacher assigned 80 oral calculations, and Xiaoxin did 69. How many are left? 16. There are 5 Chinese books on the table. Each book has 10 pages. How many pages are there in total? There is also a mathematics book. The mathematics book has 24 pages. How many pages are there in the five Chinese books and one mathematics book? 17. Xiao Ming and Xiao Hua went to the park to pick flowers. Xiao Ming picked 6 kinds of flowers, with 7 flowers of each kind. Xiao Hua picked 4 kinds of flowers, with 8 flowers of each kind. How many flowers did Xiao Ming and Xiao Hua pick in total? 18. There are 2 desks in my mother’s office. One desk has 4 of each of 9 different books. The other desk has 8 of each of 3 different books. There are two desks in my mother’s office. How many books are there in total? 19. Xiao Ming saves 4 yuan every month. How much money has he saved in half a year? 20. There are two vases. One vase contains 6 flowers and the other vase contains 4 flowers. How many flowers are there in the two vases? 21. There are two rows of poplar trees on the school playground, with 6 poplar trees in each row. How many poplar trees are there in total? 22. A brush costs 3 yuan. Xiaohong bought 4 of them. How much did it cost in total? 23. A table has 4 legs. How many legs do 8 tables have in total? 24. Xiaohong bought back some glass beads and put them in a bag of 5. There were 3 bags in total and 2 were left. How many glass beads did Xiaohong buy back in total? 25. A triangular piece of paper has 3 corners. How many corners do 6 triangular pieces of paper have in total? 26. A cube has 6 faces and each face has 4 angles. How many angles are there in total? 27. Xiao Hong has 28 pictures, and Xiao Ming has 16 more pictures than her. How many pictures does Xiao Ming have? 28, 2(3) The class bought 62 story books and 38 science and technology books. How many more story books did it buy than science and technology books? 29. The store sold 81 sets of clothing on the first day. On the second day, it sold 18 sets less than on the first day. How many sets were sold on the second day? 30. There are 3 classmates in the classroom, and 9 boys and 9 girls come in. How many classmates are there now? 31. To make a shirt, nail 5 buttons on the front and 2 buttons on each cuff. How many buttons do it take to make a shirt like this? 32. A short rope is 6 meters long. The length of a long rope is 3 times that of the short rope. How many meters is the long rope? 33. The number of ballpoint pen boxes in the store is 8 times the number of pencil boxes. There are 7 boxes of pencils. How many boxes of ballpoint pens are there? 34. There are 22 geese. There are 9 fewer geese than geese. There are 19 more ducks than geese. How many ducks and geese are there each? 35. Mingming, Lanlan and Lele watered the saplings on campus. Each person watered 6 saplings on average. How many trees were watered in total? 36. There are 24 boxes of flowers. After giving some to the kindergarten, there are 8 boxes left. How many boxes are given to the kindergarten? 37. Xiaogang made 9 dragonfly specimens, and Xiaoying made 4 times as many butterfly specimens as Xiaogang. (1) How many butterfly specimens has Xiaoying made? (2) How many more butterfly specimens did Xiaoying make than the dragonfly specimens did Xiaogang make? 38. Trees are planted on both sides of the road. 8 trees are planted on one side and 9 trees are planted on the other side. How many trees are planted on both sides in total? 39. It took Xiao Ming 27 minutes to assemble a toy racing car and Xiao Liang 34 minutes. How many points was Xiao Ming faster than Xiao Liang? 40. There are 7 rows of apple trees in the orchard, with 8 trees in each row. How many apple trees are there in total? 41. There are three rows of cars parked in the parking lot, with three cars in each row. How many cars are parked in total? 42. Xiao Ming has 8 pieces of candy, and Xiao Hong has 3 times as many pieces of candy as Xiao Ming. How many pieces of candy does Xiao Hong have? 43. Xiaohai used an 8-centimeter ruler to measure the side length of the math book exactly three times. How many centimeters was the side length of the math book? 44. The school places flowers on both sides of the classroom corridor. There are 6 pots on one side and 5 pots on the other side. How many pots are placed in total? 45. The school places flowers on both sides of the classroom corridor. There are 6 pots on each side. How many pots are placed in total? 46. ​​There are 27 cars, 15 less vans than cars, and 15 more buses than cars. How many vans and buses are there? 47. There are 36 pots of flowers left in the flower shop. They have sold as many pots of flowers as there are left. How many pots of flowers are there? 48. The worker uncle has repaired 16 chairs and needs to repair 8 more. How many chairs do he need to repair in total? 49. There are equally many red, yellow and blue balloons, a total of 27. How many red balloons are there? 50. The students of Youyi Road Primary School watch movies in two batches, with 6 classes in each batch. How many classes are there in total? 51. There are 7 white rabbits, and the number of black rabbits is 5 times that of white rabbits. How many black rabbits are there? 52. There are 3 red flowers, and the number of yellow flowers is 6 times that of red flowers. How many yellow flowers are there? 53. Mom bought 4 cakes, each cake costs 7 yuan. Is 30 yuan enough? 54. My father, mother and I broke off 9 pieces of corn respectively, and the little brother broke off 6 pieces. Asked how many corns our family broke in total? 55. The little rabbit planted 5 rows of radishes, with 9 radishes in each row. I gave 15 to my neighbor, Grandma Rabbit, and alsoHow many are left? 56. Master Wang made 80 loaves of bread. He sold 17 loaves the first time and 25 loaves the second time. How many loaves are left? 57. Mom bought 15 apples, but the oranges she bought were 6 less than the apples. How many fruits were bought in total? 58. There are 4 pandas in the zoo, and the number of monkeys is three times that of pandas. How many pandas and monkeys are there in total? 59. There are 90 books in the library. The first grade students borrowed 20 books and the second grade students borrowed 17 books. How many books are there in the library? 60. 2. There are 15 girls in class 1, and there are 11 more boys than girls. Question 2. How many students are there in class 1? Reference answers 1. 28 35 2. 16 443. 6 4. 565. 32 6. 377. 18 8. 339. 48＜50 10. 2811. 16 12. 73>7013. 12 14. 2415. 11 16. 50 7417 . 74 18. 6019. 24 20. 1021. 12 22. 1223. 32 24. 1725. 18 26. 1427. 44 28. 2429. 63 30. 2131. 9 32. 1833. 56 34. 41 1335. 18 36. 1637. 16 27 38. 1739. 7 40. 5641. 9 42. 2443. 24 44. 1145. 12 46. 12 4247. 72 48. 2449. 9 50. 1251. 35 52. 1853. Enough 54. 3355. 30 56. 3857. 24 58. 1659. 53 60. 41