小学数学四年级下册第三单元试卷

choosethecorrectmeaning;(4)tocorrectthetypos;(5)sothechildwritewords(ABAB,andAABB);(6)inaccordancewithwrittenwords;(7)thecompleteword,andexplainthemeaningoftheword;(8)collocation;(9)makesentenceswiththeword;(10)thewrittenlanguageasrequired.(C)themainsentencetypes(1)completesentences;(2)writedownthemeaningofasentenceorexpressionofthoughtsandfeelings;(3)writesentencesasrequired;(4)finishmalalignmentofthesentence;(5)modifiedsentences.2,knowledgeclassification(1)thecommonconjunctionscoordinate:......一面……...1,toexaminethetopic,identifyproblemsassociatedwithtwo2,analysis,alternativequestiontwoisindirectproportiontotheamountoftheassociatedrelationshipisinverselyproportionalrelationship.3,andsetunknown,columnproportiontype4,andsolutionsproportiontype5,andtest,wroteanswerlanguageplenary,andsubject:applicationproblem(1)--simpleapplicationproblemandcompositeapplicationproblemreviewcontentsimpleapplicationproblemcompositeapplicationproblemanswersapplicationproblemofgeneralsteps1,andfigureoutmeaning--throughexaminesthe,findknownconditionsandbyseekingproblem2,andanalysisnumberrelationship--analysisknownconditionsZhijian,andconditionsandproblemZhijianofrelationship,determineproblem-solvingmethodandproblem-solvingsteps.3,andcolumntypecalculation--listsformula,isoutsubdivisions4,andtest,andwroteanswer--check,andchecking,andwroteanswerstypicalapplicationproblem13,andsubject:applicationproblem(3)--columnequationsolutionsapplicationproblemreviewcontentoverviewproblem-solvingsteps1,andfigureoutmeaning,findbyseekingofunknownandxsaid2,andaccordingtomeaningfindequivalentrelationship,listsEquation3,andsolutionsequation4,andtest,andwroteanswersaccordingtomeaningfindequivalentrelationshipofcommonmethod1,Andaccordingtocommonofnumberrelationshiptype,establishedequivalentrelationship2,andaccordingtohaslearnhadofcalculationformula,3,andaccordingtoproblemintheoffocusdescribedsentencefromoverallShangdeterminebasicofequivalentrelationship4,andusingsegmentfigure,andlistmethod,methodanalysisnumber随着经济发展进入新常态，改革进入了攻坚期、深水区，出现了经济发展三期叠加的现象，我党毅然决然地放缓了经济发展的脚步，注重质量，精益求精，推行供给侧结构性改革，以更加稳健的步伐，引导中国经济走向世界巅峰。四年级下册第三单元单元测试一、口算。（每题0.5分，共8分）89＋11＝36＋14＝98－28＝47－27＝25×4＝16×5＝99÷11＝39÷13＝24×5＝12×7＝125×4＝480÷60＝125×8＝26×25×8＝35—35÷5＝420÷35＝二、填空。（每空1分，共15分）1．（），叫做加法交换律，用符号△、□表示为（）。2．用符号△、□、○表示加法结合律是（）。3．90×20＝20×90运用了（）这一运算定律。4．用字母a，b，c表示乘法结合律是（）。5．两个数的和与一个数相乘，可以先（），再（），这叫做乘法（）。用字母表示是（）。6．根据运算定律，在□里填上适当的数。83＋□＝25＋□39＋□＋24＝□＋（76＋24）24×□＝15×□125×5×8×2＝（□×□）×（5×2）（25＋50）×4＝□×4＋50×□（75×5）×□＝75×（□×2）三、判断。（每题2分，共12分）1．（8＋4）×25＝8×25＋4×25，运用了乘法分配律。（）2．8×（25×5）＝25×8＋8×5（）3．用符号可以把乘法结合律表示为（△＋○）×□＝□×△＋□×○。（）4．我们可以用加法交换律验算加法。（）5．一个数连续除以两个数，可以用这个数除以后两个数的积。（）6．一个数连续减去两个数，不可以用这个数减去后两个数之和。（）四、选择。（每题2分，共8分）1．下面算式正确的是（）A．874—169＋31＝874—（169＋31）B．85×13＋7＝85×（13＋7）C．（80＋8）×25＝80×25＋8×25choosethecorrectmeaning;(4)tocorrectthetypos;(5)sothechildwritewords(ABAB,andAABB);(6)inaccordancewithwrittenwords;(7)thecompleteword,andexplainthemeaningoftheword;(8)collocation;(9)makesentenceswiththeword;(10)thewrittenlanguageasrequired.(C)themainsentencetypes(1)completesentences;(2)writedownthemeaningofasentenceorexpressionofthoughtsandfeelings;(3)writesentencesasrequired;(4)finishmalalignmentofthesentence;(5)modifiedsentences.2,knowledgeclassification(1)thecommonconjunctionscoordinate:......一面……...1,toexaminethetopic,identifyproblemsassociatedwithtwo2,analysis,alternativequestiontwoisindirectproportiontotheamountoftheassociatedrelationshipisinverselyproportionalrelationship.3,andsetunknown,columnproportiontype4,andsolutionsproportiontype5,andtest,wroteanswerlanguageplenary,andsubject:applicationproblem(1)--simpleapplicationproblemandcompositeapplicationproblemreviewcontentsimpleapplicationproblemcompositeapplicationproblemanswersapplicationproblemofgeneralsteps1,andfigureoutmeaning--throughexaminesthe,findknownconditionsandbyseekingproblem2,andanalysisnumberrelationship--analysisknownconditionsZhijian,andconditionsandproblemZhijianofrelationship,determineproblem-solvingmethodandproblem-solvingsteps.3,andcolumntypecalculation--listsformula,isoutsubdivisions4,andtest,andwroteanswer--check,andchecking,andwroteanswerstypicalapplicationproblem13,andsubject:applicationproblem(3)--columnequationsolutionsapplicationproblemreviewcontentoverviewproblem-solvingsteps1,andfigureoutmeaning,findbyseekingofunknownandxsaid2,andaccordingtomeaningfindequivalentrelationship,listsEquation3,andsolutionsequation4,andtest,andwroteanswersaccordingtomeaningfindequivalentrelationshipofcommonmethod1,Andaccordingtocommonofnumberrelationshiptype,establishedequivalentrelationship2,andaccordingtohaslearnhadofcalculationformula,3,andaccordingtoproblemintheoffocusdescribedsentencefromoverallShangdeterminebasicofequivalentrelationship4,andusingsegmentfigure,andlistmethod,methodanalysisnumber随着经济发展进入新常态，改革进入了攻坚期、深水区，出现了经济发展三期叠加的现象，我党毅然决然地放缓了经济发展的脚步，注重质量，精益求精，推行供给侧结构性改革，以更加稳健的步伐，引导中国经济走向世界巅峰。2．算式925×5×2＝925×（5×2），运用了（）A．乘法交换律B．乘法结合律C．乘法分配律3．刘辉3个星期看了840页故事书，他平均每天看多少页？正确的列式是（）A．840÷3B．840÷7C．840÷（7×3）4．与54×99相等的算式是（）A．54×100—54B．54×10