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theessenceofthesocialistconceptofruleoflawleadingqualityconnotation,fortheuseofthesocialistlawcomprehensiveconcepttoguidetheirworkandtheimportanceoflearningshouldalsolackthenecessaryunderstanding.Twoisthebusinessfoundationisnotsolid,thetextlevelisnothigh.Theirworkinthearmybefore,althoughtheunderstandingofthematerial,butalsojustonlyknowfur,textlevel,writingabilityisstillinalowlevelinterface.Theknowledgeisnotcomplete,especiallyitisverylittleaboutprofessionalsomedepartmentsknowknowledgewritesomesimplebriefing.Otherworkisnotenough,andleadershipThereisaconsiderablegapbetweentherequirements.Andintheencounterthetediouswork,complexthings,sometimestakethemethodofescape,thatbridgetheboattothebridgestraight,nottheirownforcepleasefindcountermeasures,buttowaitfortheself,thelackofaspiritofhardresearch.Two,theIn1944,theamountssentoutinformation,wasarrestedbytheelves,sufferedtorture,heroicandunyielding,andkilledbytheenemy.ThefiveCommunistswho,front-lineeliteZhuZhu(1909-1996),QingShuiXiangFuCun,Shangrao沪教版数学五年级(上)概念专项练习一.填空题。1.先找出规律,再按规律填数。(1)70,35,17.5,_____。(2)0.2,0.6,1.8,_____,_____。3.200÷11的商用循环小数表示是________,用“四舍五入”法将得数精确到千分位是________。4.乌龟的爬行速度大约每秒是0.05米,兔子的奔跑速度是乌龟的280倍。兔子的奔跑速度大约每秒________米。5.世界上第一台电子计算机的重量是30吨,现在制造一种微型计算机的重量只有0.5千克,世界上第一台电子计算机的重量是这种微型计算机的_______倍。6.一个成人的正常心率大约是60~90次/分。(在平静状态下)甲的心脏3分钟跳动了312次,乙的心脏5.5分钟跳动420次,两个人中_______心率是正常的。(在横线上填写“甲”或“乙”)7.如右图,一根3.5米长的竹竿垂直插入水池中,竹竿的入泥部分是0.4米,露出水面的部分是0.8米。池水深_______分米。8.五(1)班一次数学练习,平均成绩是89分。只有小巧、小丁丁两人因病没有参加练习,第二天他俩的补考成绩分别是100分和93分。如果加上他俩的成绩后,五(1)班这次的平均成绩是89.5分。这个班有_______个学生。9.比较大小。(1)比较大小,在括号里填入“>”、“<”或“=”。(4%)(每题1分)0.1÷0.001()10002÷3()0.60.6×10()6×0.13.7×2()3.7+3.7(2)把下面的小数按从大到小的顺序排列起来。(4%)0.500.50.50.5050.05____________________________________________________10.根据126×45=5670,直接写出下列各算式的得数:theessenceofthesocialistconceptofruleoflawleadingqualityconnotation,fortheuseofthesocialistlawcomprehensiveconcepttoguidetheirworkandtheimportanceoflearningshouldalsolackthenecessaryunderstanding.Twoisthebusinessfoundationisnotsolid,thetextlevelisnothigh.Theirworkinthearmybefore,althoughtheunderstandingofthematerial,butalsojustonlyknowfur,textlevel,writingabilityisstillinalowlevelinterface.Theknowledgeisnotcomplete,especiallyitisverylittleaboutprofessionalsomedepartmentsknowknowledgewritesomesimplebriefing.Otherworkisnotenough,andleadershipThereisaconsiderablegapbetweentherequirements.Andintheencounterthetediouswork,complexthings,sometimestakethemethodofescape,thatbridgetheboattothebridgestraight,nottheirownforcepleasefindcountermeasures,buttowaitfortheself,thelackofaspiritofhardresearch.Two,theIn1944,theamountssentoutinformation,wasarrestedbytheelves,sufferedtorture,heroicandunyielding,andkilledbytheenemy.ThefiveCommunistswho,front-lineeliteZhuZhu(1909-1996),QingShuiXiangFuCun,Shangrao21.26×4.5=()0.126×4500=()11、因为102.5÷0.82=125,所以1.025÷8.2=()12、将3.19的小数点按下面方法移动:向左移动两位,再向右移动三位,得数是()。13、2.30206206……用简便方法表示是(),凑整到百分位是()。14、18.4÷3.6,当商是5.1时,余数是()。15、71.4÷★=21★=()16.李师傅4小时做20个零件,平均每小时做()个零件,平均做一个零件需要()小时。17、如果A,B,C三个数的平均数是2.5,D是7.3,则A,B,C,D四个数的平均数是()。18、一个长方形的宽增加4厘米,就成为一个正方形,面积就增加48平方厘米,原来长方形的面积是()平方厘米。19、2130ml=()1.408平方米=()平方厘米20、36.01-(7.63+▲)=21.6,利用树状算图推算,▲表示的数是()。21、5÷27的商是(),将这个商用“四舍五入法”保留三位小数是()。22.一个因数缩小到原来的100倍,另一个因数扩大4倍,积()A、缩小到原来的25倍B、扩大16倍C、不变D、无法确定23.在下列里填上“”、“”或“=”3.35×0.99_____3.3512.85×1.001_____12.8545.3×2.1____45.316.3_____1.8×16.324.2000年,我国某省出版杂志110730000册,改写成用“万”作单位的数是()册;出版报纸2330000000份,改写成用“亿”作单位的数是()份。25.“五一”长假的前3天,小明平均每天看电视3小时,后2天看电视共用了5小时,小巧在“五一”长假期间平均每天看电视用去()小时。26.小胖、丁丁和小明三个人身高的平均数为1.35m,其中小胖身高是1.4m,小明身高比丁丁矮0.05m,小明的身高是()。27.(1)用“四舍五入”法将9.9949保留两位小数约是(),精确到十分位约是()。(2)四舍五入凑整到千分位是____________(3),当商取一位小数时,剩余部分是()A、0.18B、1.8C、18D、180(4)如果一个三位小数取近似值是4.50,那么它最大是(),最小是()。二.判断题。(对的在括号内打“√”,错的打“×”)1.利用小数的性质,700.0700=700.7…………………………………()2.26.84+34.6÷0.2×4=26.84+34.6÷0.8=26.84+43.25=70.09…()3.一根钢管长6.3米,李叔叔准备把它锯成长为0.8米的小段,最多可以锯成7段,还余下0.7theessenceofthesocialistconceptofruleoflawleadingqualityconnotation,fortheuseofthesocialistlawcomprehensiveconcepttoguidetheirworkandtheimportanceoflearningshouldalsolackthenecessaryunderstanding.Twoisthebusinessfoundationisnotsolid,thetextlevelisnothigh.Theirworkinthearmybefore,althoughtheunderstandingofthematerial,butalsojustonlyknowfur,textlevel,writingabilityisstillinalowlevelinterface.Theknowledgeisnotcomplete,especiallyitisverylittleaboutprofessionalsomedepartmentsknowknowledgewritesomesimplebriefing.Otherworkisnotenough,andleadershipThereisaconsiderablegapbetweentherequirements.Andintheencounterthetediouswork,complexthings,sometimestakethemethodofescape,thatbridgetheboattothebridgestraight,nottheirownforcepleasefindcountermeasures,buttowaitfortheself,thelackofaspiritofhardresearch.Two,theIn1944,theamountssentoutinformation,wasarrestedbytheelves,sufferedtorture,heroicandunyielding,andkilledbytheenemy.ThefiveCommunistswho,front-lineeliteZhuZhu(1909-1996),QingShuiXiangFuCun,Shangrao3米的钢管。………………………………………………()4、1.223223……的小数部分第35位上的数字是3。………………………………………()5、一个两位小数四舍五入后是10.0,这个两位小数最大是10.04……………………()三.选择题。(把正确答案的字母编号填入括号内)1.下列简便计算正
本文标题:沪教版数学五年级(上)概念专项练习
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