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To solve practical problems, The boys like the modei car 2. Are these your books Please put the boxes here 4. They go to school [at seven thirty] Practical questions 1. Xiaowei has 30 2-cent and 5-cent coins in the storage tank, which are worth 9.9 cents in total. How many coins are there in each of them? 2. Master Zhang carries 1000 glass bottles. It is stipulated that he can get 0.3 yuan for carrying one bottle, but he will not pay 0.5 yuan for breaking one bottle. After transportation, Master Zhang actually gets 260 yuan for carrying one bottle?
1. Xiaowei has 30 2-cent and 5-cent coins in the storage tank, which are worth 9.9 cents in total. How many coins are there in each of them?
Chicken and rabbit in the same cage
Assuming that all the scores are 5 points, the total value is 5 × 30 = 150 points, and the actual score is 9 Jiao 9 = 99 points
If 150-99 is 51 cents more, there will be 51 / (5-2) = 17 coins for 2 cents
There are 30-17 = 13 nickels in a nickel
2. Master Zhang carries 1000 glass bottles. It is stipulated that he can get 0.3 yuan for carrying one bottle, but he will not pay 0.5 yuan for breaking one bottle. After transportation, Master Zhang actually gets 260 yuan for carrying one bottle?
Same as above
Break one and lose 0.5 yuan
Then, if all the goods are delivered, the cost is 0.3 × 1000 = 300 yuan, and the actual cost is 300-260 = 40 yuan
Then 40 / (0.3 + 0.5) = 40 / 0.8 = 50
1.Do the boys like the moden car?
2.Are these books yours?
3.Don't put the boxes here,please.
4. When do they go to school? Or what time do they go to school?
Practical problems (very simple)
When doing the multiplication of two digits, Congcong regards the single digit 6 of a factor as 9. The result of multiplication is 7031, which should be 6764. What are the two factors?
There are 30 questions in total, 5 points for one right question, 3 points for one not done or wrong question, and 118 points for Xiaojun. How many questions did she get right?
1：89 76
2：26
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