内容提示: 鸡兔同笼(Chicken with rabbit cage) The solution to the original book is that the number is a, and the number of feet is B. B / 2 - A is the number of rabbits, and a - (B / 2 - a) is the number of pheasants. This solution is really wonderful. When solving the ...
The problem of chicken cage free(鸡免同笼问题大全) Class exercises a chicken with rabbit cage There are 1. chickens and rabbits altogether 20, 44 feet, chicken every few? 2. have a total of 100 heads and 350 feet. The turtle, crane how many? 3. chicken a total of 13, a total of...
鸡兔同笼问题巧解(Tosolvetheproblemofchickenwithrabbit cage) 如何进行“鸡兔同笼”问题教学 一、教学目标: 1.使学生了解“鸡兔同笼”问题的结构特点,掌握用列表法、假设 法、方程法解决问题,初步形成解决此类问题的一般性策略。 2、通过自主探索,合作交流,让学生经历用不同的方法解决“鸡兔 ...
11. chicken with rabbit cage, head of a total of 20, a total of 62 feet, chicken and rabbit for each number only? 12. chicken with rabbit cage, head of a total of 35, a total of 94 feet, chicken and rabbit for the number of heads? 13. chicken 200, chicken feet than the ...
设鸡有X只，兔有Y只，则鸡脚有2X只，兔脚有4Y只。题主所给数据不明确，姑且认为鸡兔共184只，脚有626只，则得方程组：X+Y=184，① 2X+4Y=626，② 所以：X+2Y=313③ ③-①得：Y=129，X=184-129=55。综上，鸡有55只，兔有129只。在下英语太破，所以只能用中文作答，请见谅。
with the lower bolster, is provided with the model jack on the cope match -plate pattern, sets up rabbit model and chicken model in the model jack, the beneficial effects of the utility model are that case is demonstrated with cage to chicken rabbit clear and definite show directly perceived...
Let Problem-Solving Ideas More Live Some——Reflections on "Teaching Chicken with Rabbit Cage" 来自 知网 喜欢 0 阅读量: 54 作者: DH Zhang 摘要: The strategy for solving problems is developed in practice.When solving the problems,it is necessary to change the practical problem into mathematic ...
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