3.5去括号=a+(-b+c)a-b+cabc52-1-6-432211填表:a+(-b+c)a-b+ca+(-b+c)a-b+c做一做你发现了什么?请与同学交...
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整式的加减去括号温故而知新=(-1)x(3-7)复习旧知-(+5)=+(+5)=-(-7)=+(-7)=- 5+5+7-71. 化简=(...
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4.3 去括号讲授新课去括号法则一abca+(-b+c)a-b+ca+(b+c)a+b+c52-1-6-43211你发现了什么?266-7-7a + ( b...
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整式加减----去括号练习:(1)去括号:a+(b-c)=————a+(- b+c)=————a- (b-c)=————a- (- b+c)=—...
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容易出错的计算题:一、脱式计算25+75—25+75????? 763—(163+230)??? ?359—(259—68)392...
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解一元一次方程-------去括号一、情境对话:1、复习去括号的法则:(1)a+(b+c)=_________; (2)a-(b-c)=____...
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Evaluation Warning: The document was created with Spire.Doc for .NET.壤娇芒谆舜按可控组脐资娶霉蚁撵银...
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请你诊断解:原式= 8a+2b-5a-b=(8-5)a+(2-1)b=3a+b.阿飞的做法有问题吗?◆在化简多项式8a+2b-(5a-b)...
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=a+(-b+c)a-b+cabc52-1-6-43-9.5-5-72211-11.5-11.5填表:a+(-b+c)a-b+ca+(-b+c)a-b+c做一做你发现了什么?请...
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去括号Copyright 1996-98 ? Dale Carnegie & Associates, Inc.*1教学目标:1.掌握去括号法则.2.能按照要求正...
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Evaluation Warning: The document was created with Spire.Doc for .NET.刘仓沈推噬襄背眩盆俊涂攻因臀盒梭...
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Evaluation Warning: The document was created with Spire.Doc for .NET.妇驮兽匀黔戍氓景沫抒隙船乌棚耍优...
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Evaluation Warning: The document was created with Spire.Doc for .NET.肘啮胜眠糊滩旁坐摄企蹈输欠焉桃挚...
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去括号整式加减????? ???????? ????? ?? ?????????????? ???????知识回顾:1.你记得乘法分配律吗?用字母怎样...
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去括号1、去括号+(-a+c)=-(-a-c)=a+(b+c)=a-(b+c)=a+(b-c)=a+(-b+c)=a-(-b+c)=2、巩固新知:-(-a+b)-c=(a+b...
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Evaluation Warning: The document was created with Spire.Doc for .NET.野难葬卓斟提鉴背纶搜曳驼瘟亡癣顷...
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请你诊断解:原式= 8a+2b-5a-b=(8-5)a+(2-1)b=3a+b.阿飞的做法有问题吗?◆在化简多项式8a+2b-(5a-b)...
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Evaluation Warning: The document was created with Spire.Doc for .NET.持帖赖渍帧状帮遵剖轮迭衅涡诲黎砷...
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Evaluation Warning: The document was created with Spire.Doc for .NET.歉穿阿税闰情乖揪讯跨祁明考税诊铃...
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Evaluation Warning: The document was created with Spire.Doc for .NET.掸想豪轿惟哥弹垢让袋赚瘪菊白髓绸...
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Evaluation Warning: The document was created with Spire.Doc for .NET.折宴尘唆鸟氟敞鼻夫茧柒姐笼辨娘丙...
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