4年级数学应用题（4grademathproblem）.doc4年级数学应用题(4grademathproblem)Schoolbuildingplanstoinvest450thousandyuan,?(Zhejiang,Zhuji)electricitysavings?(FujianExperimentalPrimarySchool)3.,afactoryplanstoproduce400setsofTVsetsinMarch・Infact,ithasproduced250unitsinthepasthalfmonth,?(NanchangQingyunDistrict),,BandCthreepipes,awaterf1owpersecondto4gramsofsaltoutofsalt20%,Bto6gramspersecondwaterflowoutofsaltbrinewaterin15%,C10gramsofwaterflowpersecond,2secondsafterthestartofpropylenepipeopendoesnotflow,thentheflowfor5seconds,then2secondstostop,andin5seconds Openthethreetubeatthesametimeandturnoffafter1minutes・Howmuchsaltdoesthemixturedrop?(affiliatedforeignlanguageschoolofWuhanUniversity),danceclasses,paintingclassesthanthedanceclass%?(Narmingcity)6.,XiaoMingwithapackageofmungbeanstodoexperiments,ofwhichgerminationof100seeds,therearenogerminationof25seeds,seekingtherateofgerminationofthispackageofmungbeans.(Zhejiang,Wenling)Lookatthe4page・Howmanypartsofthebookdidyoureadonthesecondday?(Jiangsu,Wuxi)forthedonation,shedonated4・2yuan,,MarycontributedmorethanXiaohuaafew?(Henan,Anyang),adressfortwentypercentoff,sell100yuan,theactual90yuantoseiLHowmuchistheactualdiscount?(ZhejiangCounty,Xianju),thecanteenshipped600kilogramsofrice,haseaten4days,?(JianyeDistrict,Nanjing)3boxesoforangesare24kiloslessthan3basketsofapples・Theaverageweightoforangesineachcaseis20kilograms・Howmuchistheweightofeachbasketofapples?(Zhejiang,Taizhoucity)inthegreeningofthemotherlandtocollecttreespeciesactivities,aschoolgrade5,fourclasses,eachclasscollected20kilogramsoftrees,fivegrade3classes,atotalof60kilogramsofcollection,theaveragenumberoftreescollectedperun
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