国际学校六年级数学下学期数学试卷

国际学校六年级数学下学期数学试卷Mid-TermExamPaperChoice：(28’)

1、Thereciprocalofanegativerationalnumber

_____.

(a)isapositiverationalnumber

(b)isanegativerationalnumber

(c)canbeeitherapositiveoranegativerationalnumber

(d)doesnotexist

2、Howmanyrationalnumbersaretherebetweentworationalnumbers?

(a)1

(b)0(c)Unlimited

(d)1003、Thenumbers________and________aretheirownreciprocals1and0(b)1and-1(c)-1and0(d)Noneofthese.4、Theproductoftworationalnumbersisalwaysa_______.(a)Wholenumbers(b)Integers(c)Naturalnumbers(d)Rationalnumbers5、Whichofthefollowingrationalnumbersispositive?(a)(b)(c)(d)6、Whichoperationwouldyoudofirsttoevaluatethisexpression?8.8−1.4÷0.2×2.1+3.5(a)Add3.5to2.1.(b)Subtract1.4from8.8.(c)Multiply0.2by2.1.(d)Divide1.4by0.2.7、Theproductoftwonumbersis-20/9.Ifoneofthenumbersis4,findtheother.

(a)(b)(c)(d)8、Thetemperatureatthetopofamountainis10.8°Clessthanthetemperatureatthebaseofthemountain.Ifthetemperatureatthebaseis−4.4°C,whatisthetemperatureatthetop?(a)6.4°C(b)15.2°C(c)−15.2°C(d)-6.4°C9、Zerohas________reciprocal.(a)1(b)2(c)3(d)No10、Forwhatvalueofathenumberisnotarationalnumber.(a)-1(b)1(c)0(d)1011、Decimalexpansionofanirrationalnumberis(a)Nonterminating(b)Terminating(c)Recurring(d)neither(b)and(c)12、Sumoftwonegativenumbersisalways(a)Positive(b)Negative(c)0(d)113、Arationalnumberp/qissaidtobeinthesimplestformiftheHCFofpandqis(a)2(b)1(c)0(d)314、Arationalnumbera/bisgreaterthanc/dif(a)ad>bc(b)ad<bc(c)ad=bc(d)ad≠bc国际学校六年级数学下学期数学试卷全文共5页，当前为第1页。Usingthefollowingnumberline,fillintheblanks:(14’)国际学校六年级数学下学期数学试卷全文共5页，当前为第1页。(1)Aninteger,onthegivennumberline,is________thaneverynumberonitsleft(2)-5isa________integer.(3)Zeroisneither________nornegativeinteger.(4)-7is___________than6andoppositeof-4is___________thanoppositeof-9.(5)If+15representsgainof$15;then+45represents_______;and-75represents___________.(6)Absolutevalueof+24is___________andabsolutevalueof-35is___________.(7)|-11|=___________,|+11|=___________and-|-11|=___________.(8)Theoppositeof+46is___________andthatof-88is___________Statewhetherthestatementsaretrueorfalse:(6’)(i)Thesmallestintegeris0.()(ii)Theoppositeof-17is17.()(iii)Theoppositeofzeroiszero.()(iv)Everynegativeintegerissmallerthan0.()(v)0isgreaterthaneverypositiveinteger.()(vi)Since,zeroisneithernegativenorpositive;itisnotaninteger.()Write.(12’)(i)Therationalnumberthatdoesnothaveareciprocal.(ii)Therationalnumbersthatisequaltotheirreciprocals.(iii)Therationalnumberthatisequaltoitsnegative.国际学校六年级数学下学期数学试卷全文共5页，当前为第2页。国际学校六年级数学下学期数学试卷全文共5页，当前为第2页。(iv)TheadditiveinverseofanegativenumberExpresseachofthefollowingrationalnumbersinitssimplestform.(6’)(1)(2)(3)Arrangetherationalnumbers,,,,inascendingorder.(5’)Dividethesumofandbytheproductofand.(5’)Thesumoftworationalnumbersis.Ifoneofthenumbersis,findtheother.(5’)国际学校六年级数学下学期数学试卷全文共5页，当前为第3页。国际学校六年级数学下学期数学试卷全文共5页，当前为第3页。Calculate:(20’)ExtraQuestion：(15’)1、SemicirclesPOQandROSpassthroughthecenterO.WhatistheratioofthecombinedareasofthetwosemicirclestotheareaofcircleO?国际学校六年级数学下学期数学试卷全文共5页，当前为第4页。国际学校六年级数学下学期数学试卷全文共5页，当前为第4页。2、Huiisanavidreader.SheboughtacopyofthebestsellerMathisBeautiful.Onthefirstday,Huireadofthepagesplus12more,andontheseconddayshereadoftheremainingpagesplus15pages.Onthethirddayshereadoftheremainingpagesplus18pages.Shethenrealizedthattherewereonly62pageslefttoread,whichshereadthenextday.Howmanypagesarein