稍复杂的列方程解应用题练习.pptx

列方程解应用题 练习Evaluation only.Created with Aspose.Slides for.NET 3.5 Client Profile 5.2.0.0.Copyright 2004-2011 Aspose Pty Ltd.一、解方程一、解方程0.7(x-6)=5.6 2x+6x=6.43.5x-x=7练习练习Evaluation only.Created with Aspose.Slides for.NET 3.5 Client Profile 5.2.0.0.Copyright 2004-2011 Aspose Pty Ltd.二、用含有字母的式子表示数量。二、用含有字母的式子表示数量。学校科技组有女生学校科技组有女生x人，人，男生是女生的男生是女生的3倍倍，男生有（男生有（），），男女生一共有男女生一共有()男生比女生多（男生比女生多（）3x4x2xEvaluation only.Created with Aspose.Slides for.NET 3.5 Client Profile 5.2.0.0.Copyright 2004-2011 Aspose Pty Ltd.三、解决问题三、解决问题 1、妈妈买了苹果和桔子各妈妈买了苹果和桔子各 2千克，桔子每千克千克，桔子每千克2.8元，元，一一 共花了共花了17.4元。苹果每元。苹果每 千克多少元千克多少元?Evaluation only.Created with Aspose.Slides for.NET 3.5 Client Profile 5.2.0.0.Copyright 2004-2011 Aspose Pty Ltd.2、奶奶养了一些鸡，奶奶养了一些鸡，母鸡的只数是公鸡的母鸡的只数是公鸡的5倍，倍，母鸡比公鸡多母鸡比公鸡多28只，只，公鸡、母鸡各养多少只？公鸡、母鸡各养多少只？Evaluation only.Created with Aspose.Slides for.NET 3.5 Client Profile 5.2.0.0.Copyright 2004-2011 Aspose Pty Ltd.2、奶奶养了一些鸡，母鸡的只数是公鸡的、奶奶养了一些鸡，母鸡的只数是公鸡的5倍，倍，母鸡比公鸡多母鸡比公鸡多28只，公鸡、母鸡各养多少只？只，公鸡、母鸡各养多少只？解：设公鸡有解：设公鸡有X只，母鸡有只，母鸡有5X只。只。母鸡只数公鸡只数母鸡只数公鸡只数=母鸡比公鸡多的只数母鸡比公鸡多的只数5XX=28（5-1）X=28 X=284 X=75X=57 X=35 （母鸡只数）（母鸡只数）答：公鸡有答：公鸡有7只，母鸡有只，母鸡有35只。只。Evaluation only.Created with Aspose.Slides for.NET 3.5 Client Profile 5.2.0.0.Copyright 2004-2011 Aspose Pty Ltd.每个多少钱？每个多少钱？（课本第课本第72页的）页的）Evaluation only.Created with Aspose.Slides for.NET 3.5 Client Profile 5.2.0.0.Copyright 2004-2011 Aspose Pty Ltd.7、鸡和兔的数量相同，鸡和兔的数量相同，两种动物的腿加起来共两种动物的腿加起来共有有48条。鸡和兔各有多条。鸡和兔各有多少只？少只？Evaluation only.Created with Aspose.Slides for.NET 3.5 Client Profile 5.2.0.0.Copyright 2004-2011 Aspose Pty Ltd.Evaluation only.Created with Aspose.Slides for.NET 3.5 Client Profile 5.2.0.0.Copyright 2004-2011 Aspose Pty Ltd.Evaluation only.Created with Aspose.Slides for.NET 3.5 Client Profile 5.2.0.0.Copyright 2004-2011 Aspose Pty Ltd.Evaluation only.Created with Aspose.Slides for.NET 3.5 Client Profile 5.2.0.0.Copyright 2004-2011 Aspose Pty Ltd.Evaluation only.Created with Aspose.Slides for.NET 3.5 Client Profile 5.2.0.0.Copyright 2004-2011 Aspose Pty Ltd.再见Evaluation only.Created with Aspose.Slides for.NET 3.5 Client Profile 5.2.0.0.Copyright 2004-2011 Aspose Pty Ltd.Evaluation only.Created with Aspose.Slides for.NET 3.5 Client Profile 5.2.0.0.Copyright 2004-2011 Aspose Pty Ltd.Evaluation only.Created with Aspose.Slides for.NET 3.5 Client Profile 5.2.0.0.Copyright 2004-2011 Aspose Pty Ltd.Evaluation only.Created with Aspose.Slides for.NET 3.5 Client Profile 5.2.0.0.Copyright 2004-2011 Aspose Pty Ltd.