國際學(xué)校六年級數(shù)學(xué)下學(xué)期數(shù)學(xué)試卷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國際學(xué)校六年級數(shù)學(xué)下學(xué)期數(shù)學(xué)試卷全文共5頁，當(dāng)前為第1頁。Usingthefollowingnumberline,fillintheblanks:(14’)國際學(xué)校六年級數(shù)學(xué)下學(xué)期數(shù)學(xué)試卷全文共5頁，當(dāng)前為第1頁。(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.國際學(xué)校六年級數(shù)學(xué)下學(xué)期數(shù)學(xué)試卷全文共5頁，當(dāng)前為第2頁。國際學(xué)校六年級數(shù)學(xué)下學(xué)期數(shù)學(xué)試卷全文共5頁，當(dāng)前為第2頁。(iv)TheadditiveinverseofanegativenumberExpresseachofthefollowingrationalnumbersinitssimplestform.(6’)(1)(2)(3)Arrangetherationalnumbers,,,,inascendingorder.(5’)Dividethesumofandbytheproductofand.(5’)Thesumoftworationalnumbersis.Ifoneofthenumbersis,findtheother.(5’)國際學(xué)校六年級數(shù)學(xué)下學(xué)期數(shù)學(xué)試卷全文共5頁，當(dāng)前為第3頁。國際學(xué)校六年級數(shù)學(xué)下學(xué)期數(shù)學(xué)試卷全文共5頁，當(dāng)前為第3頁。Calculate:(20’)ExtraQuestion：(15’)1、SemicirclesPOQandROSpassthroughthecenterO.WhatistheratioofthecombinedareasofthetwosemicirclestotheareaofcircleO?國際學(xué)校六年級數(shù)學(xué)下學(xué)期數(shù)學(xué)試卷全文共5頁，當(dāng)前為第4頁。國際學(xué)校六年級數(shù)學(xué)下學(xué)期數(shù)學(xué)試卷全文共5頁，當(dāng)前為第4頁。2、Huiisanavidreader.SheboughtacopyofthebestsellerMathisBeautiful.Onthefirstday,Huireadofthepagesplus12more,andontheseconddayshereadoftheremainingpagesplus15pages.Onthethirddayshereadoftheremainingpagesplus18pages.Shethenrealizedthattherewereonly62pageslefttoread,whichshereadthenextday.Howmanypagesarein