Created with an evaluation copy of Aspose.Words. To discover the full versions of our APIs please visit: :products.asposewords
人教版七年级上册Created with an evaluation copy of Aspose.Words. To discover the full versions of our APIs please visit: :products.asposewordsCreated with an evaluation copy of Aspose.Words. To di
第三章一、双基回顾1、方程、方程的解和解方程含有的叫做方程;使方程 相等的 的值叫做方程的解。的过程叫做解方程。〔1〕x=-3是不是方程2x=5x+9的解,你是怎么知道的2、一元一次方程只含有 未知数,并且未知项的次数的方程叫做一元一次方程。〔2〕指出下列各式中哪些是一元一次方程?并说明理由。(1)2x-y=3;(2)x=0; (3)x2-2x+1=0; (4)x+3=2x-13、等式的性质性
第三章一、双基回顾1、移项把等式一边的某一项移到另一边,叫做移项。〔1〕把方程2-2x=3x-1含未知数的项移到左边,常数项移到右边。(注意:移项要变号。)2、去括号方法:运用乘法分配律。〔2〕a+2 (b-c-d)= ; a-3 (b+c-d)=3、去分母方程两边同乘以所有分母的。(注意:①每一项都要乘,不能漏乘;②去掉分数线后,分子要加上括号。)〔3〕解方程时,去分母后正确的是〔〕A、4x
Created with an evaluation copy of Aspose.Words. To discover the full versions of our APIs please visit: :products.asposewords
人教版七年级上册Created with an evaluation copy of Aspose.Words. To discover the full versions of our APIs please visit: :products.asposewordsCreated with an evaluation copy of Aspose.Words. To di
This document was truncated here because it was created in the Evaluation Mode.Created with an evaluation copy of Aspose.Words. To discover the full versions of our APIs please visit: :product
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第一章 有理数1.1 正数和负数1.2 有理数阅读与思考 用正负数表示加工允许误差1.3 有理数的加减法实验与探究 填幻方阅读与思考 中国人最先使用负数1.4 有理数的乘除法观察与思考 翻牌游戏中的数学道理1.5 有理数的乘方数学活动小结复习题1Created with an evaluation copy of Aspose.Words. To discover the full ve
Created with an evaluation copy of Aspose.Words. To discover the full versions of our APIs please visit: :products.asposewords
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