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随着学习的深入,我们可以用字母代替数,列代数式是初中数学的基础知识,对于刚踏入初中的同学们来说,一定要学好这部分知识,为以后课程的学习打下坚实的基础.一、抓住关键词语确定运算关系确定数量间的运算关系,必须抓住一些关键词语:和、差、积、商、平方、立方、倒数以及大、小、多、少、几分之几、几倍等.只有正确理解这些词语的含义,才能弄清楚运算关系,这样列代数式就不难了.
With the deepening of learning, we can use letters instead of numbers, column algebra is the basic knowledge of junior high school mathematics, for students just entering junior high school, we must learn this part of the knowledge for future study to lay a solid foundation. First, to seize the key words to determine the relationship between computing operations to determine the relationship between the number of operations, we must seize a number of key words: and, difference, product, quotient, square, cube, countdown and large, Several times, etc. Only by correctly understanding the meaning of these words can we figure out the relationship between operations, so it is not difficult to formulate algebra.