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复习提要1.进一步掌握用字母表示常见的数量关系和学过的运算定律、计算公式。2.进一步理解方程、方程的解、解方程的意义,并会解简易方程。3.进一步理解比、比例、正比例、反比例和比例尺的意义;掌握比的基本性质及比例的基本性质,会求比值、化简比、解比例;能正确判断两种相关联的量成不成比例、成什么比例。
Review Synopsis 1. To further master the number of commonly used letters to understand the relationship between the law and learned arithmetic formula. 2. Further understanding of equations, equations of solution, solution of the meaning of equations, and will solve simple equations. 3. To further understand the significance of proportionality, proportionality, inverse proportionality and scale; to grasp the basic nature of proportionality and the basic nature of proportionality, to seek the ratio, simplification ratio, and proportionality; to correctly judge the amounts of the two relatedness to be disproportionate What percentage?