The school bought 600 books, including 480 story books and the rest comic books. How many story books are there than comic books?
Analysis and answer: It is required that "how many storybooks are more than comics" must know the number of storybooks and comics. According to the meaning of the question, we should find the number of comic books first, and then find more.
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Class 1:3(5) made 50 flowers, including 38 red flowers and the rest green flowers. How many more red flowers are there than green ones?
Example 2: Lili bought a down jacket and a pair of trousers in the department store. Down jackets used to go to 480 yuan, five times as much as trousers. 600 yuan, the shop assistant, how much should she get back?
Analysis and solution: You need to know how much you need to get back, how much you need to spend on a * * *, how much you need to spend on a down jacket and how much you need to spend on pants, so you need to buy the money for pants first.
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Try 2: Students should make 100 flags. Girls made 56 flags, twice as many as boys. How many flags are left?
Example 3: The number of pear trees in the orchard is three times that of peach trees, and the number of apple trees is 280 more than peach trees. There are 820 apple trees and how many pear trees in the orchard? How many peach, pear and apple trees are there?
Analysis and solution: To ask how many pear trees there are, first ask how many peach trees there are, and finally ask how many trees there are.
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Trial 3: The number of chickens raised in the farm is four times that of ducks, and the number of geese is less than that of ducks 150. There are 200 geese on the farm. How many chickens are there? How many chickens, ducks and geese are there?
Example 4: At the school science and technology festival, there were 148 scientific and technological works exhibited in grade four, and more works were exhibited in grade five than in grade four 14. How many were exhibited in the fifth grade? How many pieces were exhibited more than the fourth grade?
Analysis and answer: according to the meaning of the question, how many pieces need to be exhibited in the fifth grade? You should know the number of chess pieces in the fourth grade, and there are some known questions.
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Test 4: There are 26 footballs in the sports equipment room, and the number of volleyball is three times less than that of football. 15. How many volleyball balls are there? How much more than football?
The distance between Li Qiang's home and the school is 350 meters, which is 90 meters less than the distance to the stationery store. The distance from the school to the stationery store is twice that of Li Qiang's home to the school. After school, Li Qiang went home to buy pencils at the stationery store. How many meters does Li Qiang have to walk?
Analysis and Answer: How many meters does it take for Li Qiang to buy a pencil at the stationery store before going home? We should know the distance from home to the stationery store and the distance from school to the stationery store.
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Try 5. The distance from Xiaolin's home to school is 120 meters, which is 80 meters less than the bookstore. The distance from the school to the bookstore is twice that of Kobayashi's home to the school. How many meters does Xiaolin have to walk after school?
Example 6: Students collect seeds. Class 3 (1) charges 20kg more than Class 3 (2), Class 3 (4) charges less 12kg, and Class 3 (2) charges 6kg more than Class 3 (3). Which class collects the most? How many kilograms is the difference between the maximum and the minimum?
Analysis and answer:
Try 6. On Children's Day, students made red flowers for kindergarten children. Xiaoling made 12 more flowers than Xiaohua, Xiao Fang made 9 fewer flowers than Xiaoli, and Xiaohua made 4 more flowers than Xiao Fang. Who earns the most? How many flowers are there between the maximum and the minimum?
Exercise:
1, Xiaohong and Xiao Juan * * * have 84 pictures, of which Xiaohong has 26. How much less is Xiaohong than Xiao Juan?
Light light blue bought an ice cream and a pack of jelly. It costs 5.40 yuan to buy jelly, which is three times as much as learning ice cream. She gave it to the shop assistant 10. How much should she get back?
3. Tomatoes from the vegetable market are four times as many as radishes, 22 baskets more than cucumbers, and cucumbers 10 baskets. How many baskets of tomatoes, radishes and cucumbers were shipped?
4. A shoe factory produces 2,200 pairs of men's shoes, and the number of women's shoes is 3 times less than that of men's shoes by 40 pairs. How many pairs of men's shoes have been produced?
5. The distance from Xiaoxuan's home to her mother's company is 820 meters, which is more than the distance from school to company 130 meters, which is twice the distance from her mother's company to school. After work, her mother went to school to pick up Xiao Xuan and then went home. How many roads did mom walk?
6. In a long-distance race, Xiao Qiang is 60 meters ahead of Xiao Xin, Xiaohua is behind Xiaoli 100 meters, and Xiao Xin is 20 meters behind Xiaohua. Who runs first? How many meters is the difference between the first place and the last place?