论文部分内容阅读
有些关系复杂,且标准量不同的分数应用题,如果将抽象的分率化成整数份数,用扩倍法将不同的份数变相同,不但能巧妙地统一单位“1”,而且能获得简捷的解法。例如:高中学生的人数是初中学生人数的5/6,高中毕业生的人数是初中毕业生人数的12/17,高、初中毕业生毕业后,高、初中留下的人数都是520人,那么高、初中毕业生共有____人。(1996小数奥
Some of the complex relationship, and the standard amount of different scores of application questions, if the abstract rate into an integral number of copies, with the magnification method will be the same number of different parts of the same, not only cleverly unified unit “1”, and access to simple Solution. For example, the number of high school students is 5/6 of junior high school students, and the number of high school graduates is 12/17 of the number of middle school graduates. After graduating from middle and high school, the number of high and middle school students left is 520, So high, a total of junior high school graduates ____ people. (1996 decimal Austrian