五年级数学计算竞赛题1

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1、五年级计算题竞赛试卷分数姓名一、直接写得数（每小题1分，共8分）2.1×0.3÷2.1＝1/2-1/3＝77÷7.7＝0.24÷0.3＝0.2×0.5＝3/4-2/3=2.3－0÷8.1=1.4×0.6=二、竖式计算（每小题4分，共16分）9.792÷3.2＝23÷45＝53.73－17.49＝10.7×0.75＝三、脱式计算（每小题4分，共16分）9.8×[2.5-(0.95+1.3)]（77.4－30.96÷0.4）÷0.033constructionqualityacceptanceandassessmentRegulation(Pr

2、ofessionalEdition)(DL/T5210.2-2009~DL/T5210.8-2009);1.9thequalitycheckoutandevaluationofelectricequipmentinstallationengineeringcode(DL/T5161.1-2002~5161.17-2002);1.10thenormsofconstructionsupervision,theelectricpowerconstructionsupervisionregulations0.34×[(144×0.8)÷(2.67+

3、1.83)][（6－3.6）÷0.8－1.3]×0.09四、简便计算（每小题3分，共24分）5/2－（3/2+4/5）5/7－1/6+2/7=2.82+5.3×2.82+2.82×3.70.94×2.5＋0.094×751.25×32×2.510.1×78constructionqualityacceptanceandassessmentRegulation(ProfessionalEdition)(DL/T5210.2-2009~DL/T5210.8-2009);1.9thequalitycheckoutandevaluationofel

4、ectricequipmentinstallationengineeringcode(DL/T5161.1-2002~5161.17-2002);1.10thenormsofconstructionsupervision,theelectricpowerconstructionsupervisionregulations2.55×7.1+2..45×7.1777×9+111×37五、列式计算（每小题4分，共12分）82.5与0.4的积比7.5与4.95的差大多少？3.6被0.23与3.37的和的2倍去除，商是多少？6.25与3.75的和除这

5、两个数的差，商是多少？constructionqualityacceptanceandassessmentRegulation(ProfessionalEdition)(DL/T5210.2-2009~DL/T5210.8-2009);1.9thequalitycheckoutandevaluationofelectricequipmentinstallationengineeringcode(DL/T5161.1-2002~5161.17-2002);1.10thenormsofconstructionsupervision,theele

6、ctricpowerconstructionsupervisionregulations六、求下面每组数的最大公约数和最小公倍数。（每小题4分，共24分）45和6036和6042和10527和7276和8036和48constructionqualityacceptanceandassessmentRegulation(ProfessionalEdition)(DL/T5210.2-2009~DL/T5210.8-2009);1.9thequalitycheckoutandevaluationofelectricequipmentinsta

7、llationengineeringcode(DL/T5161.1-2002~5161.17-2002);1.10thenormsofconstructionsupervision,theelectricpowerconstructionsupervisionregulations