美国八年级数学考试题

DIRECTIONSReadandsolveeachquestion.Thenmarkthespaceintheanswerbookletforthebestanswer.SAMPLEVickihad$228inhercheckingaccount.Sheused$37tobuyabirthdaygiftforhergrandmother.Afterthat,howmuchdidshehaveleftinhercheckingaccount?A$211B$191�C$181D$1641If0.3��x��35%,whichofthefollowingcouldbethevalueofx?A14B13�C12D12Whatisthevalueof3��7(23��6)2?F23G31�H84J2,5033Ascaledistanceof3.5centimetersonacertainmaprepresentsanactualdistanceof175kilometers.Whatactualdistancedoes5.7centimetersonthesamemaprepresent?A0.285kmB2.85kmC28.5kmD285km�4Whichofthefollowingisnotaprimenumber?F2G5H17J121�SESSION:22PAGE:311/7/10110:4LOGINIS-pamPATH:@sun1/xydisk2/CLS_psycorp/GRP_virginia/JOB_537591g8/DIV_g8mathtestM7010305�CLM8020305�CLM8010107�CM6030401�CMathematics35Theshadedpartofthesquarecanbeexpressedby—A0.02B20%�C14D256Miahas90rosesand135carnationstoputintovases.Shewantstoputthesamenumberofrosesandthesamenumberofcarnationsintoeachvase.Whatisthegreatestnumberofvasesthatshewillneedinordertodothis?F5G9H15J45�7WhichisclosesttothelocationofpointAonthenumberline?A�11�B�7C7D118Whichisanexampleoftheassociativepropertyofmultiplication?F7⋅0⋅9�0G4⋅(7⋅�3)�4⋅(�3⋅7)H�6⋅16�⋅3�3J5⋅(3⋅�8)�(5⋅3)⋅�8�9Johannarentedacar.Rentalcostswere$29.00perdayplus$0.49foreachmiledriven.Ifshekeptthecarfor1dayanddrove50miles,howmuchdidsheowe?A$29.49B$31.45C$53.50�D$78.00A05–5SESSION:22PAGE:411/7/10110:4LOGINIS-pamPATH:@sun1/xydisk2/CLS_psycorp/GRP_virginia/JOB_537591g8/DIV_g8mathtestM6010402�CArtCodesM6010402.AR1M7020301�CLM6050102�CArtCodesM6050102.AR1M704A202�CM8040305�C410Randymakes$200perweek.Hisemployerdeducts4%ofhisearningsforRandy’smedicalinsurance.HowmuchofhisweeklysalarydoesRandypayformedicalinsurance?F$80G$8�H$0.80J$0.0811Betweenwhichtwoconsecutivewholenumbersdoes�42lie?A5and6B6and7�C7and8D8and912Whatisthevalueofx2(7��x)��2whenx��5?F52�G100H152J17213Mrs.Adamswalksbetween410and610mileeveryday.Whichisthebestestimateofthenumberofmilesshewillwalkin30days?A12B15�C18D2014Chrisusedacopymachinetoenlargeadrawingto150%ofitsoriginalsize.Ifthewidthoftheoriginaldrawingwas37centimeters,whatisthewidthofthecopyofthedrawing?F37.0cmG55.5cm�H92.5cmJ150.0cm15Purewaterboilsat212�F.Ifacertainchemicalisaddedtothewater,theboilingpointchangesby�28�F.Atwhattemperaturedoesthenewliquidboil?A240�FB184�F�C�184�FD�240�FSESSION:22PAGE:511/7/10110:4LOGINIS-pamPATH:@sun1/xydisk2/CLS_psycorp/GRP_virginia/JOB_537591g8/DIV_g8mathtestM8040208�CM8060401�CM8050304�CLM6070301�CLM7070404�CM8040140�C516IfGinameasuredthelengthofall4sidesofthetopofherdeskandaddedthemtogether,whatwouldshehave?FThediameterGThevolumeHTheperimeter�JThearea17Theanglesin��ABCmeasure27�,73�,and80�.Whatkindoftriangleis��ABC?AEquiangularBAcute�CObtuseDRight18Whatisthevolumeofthesquare-basedpyramidshownbelow?F96cuin.G256cuin.�H384cuin.J768cuin.19Eachcubeinthisstackhasavolumeof1cubicunit,andeachfaceofthosecubeshasanareaof1squareunit.Whichcouldbethesurfaceareaofthisstackofcubes?A18squnitsB24squnitsC29squnitsD36squnits�8in.12in.SESSION:22PAGE:611/7/10110:4LOGINIS-pamPATH:@sun1/xydisk2/CLS_psycorp/GRP_virginia/JOB_537591g8/DIV_g8mathtestM8100116�CM8100202�CM8080106�CLArtCodesM8080106.AR1M7130203�CArtCodesM7130203.AR1620Thedarkrectangleisreflectedoverlinev.Whichshowsthisreflection?21Whichisclosesttothevolumeoftheconeshownabove?A87.9cm3B395.6cm3C527.5cm3�D1582.6cm322Whichistheclosesttothecircumferenceofacirclewitharadiusof2.4meters?F7.5mG15.1m�H18.1mJ72.3m0–1–2–3–4–443211234–4–3–2–1vh0–1–2–3–4–443211234–4–3–2–1vh0–1–2–3–4–443211234–4–3–2–1vh–4vhvhFGHJ�6cm14cmSESSION:22PAGE:711/7/10110:4LOGINIS-pamPATH:@sun1/xydisk2/CLS_psycorp/GRP_virginia/JOB_537591g8/DIV_g8mathtestM8090202�CArtCodesM8090202.AR1ArtCodesM8090202.AR2M8090202.AR3M8090202.AR4M8090202.AR5M8080405�CArtCodesM8080405.AR1M6120455�C723Inthisscaledrawing,eachsquareunitrepresents1squarecentimeter.Whatistheareaofthefigurerepresentedbythedrawing?A15cm2B20cm2C32cm2D47cm2�24Thisshows3differentviewsofathree-dimensionalfigureconstructedfromcubes.Whichcouldbethisfigure?TopFrontSideFGHJ�SESSION:22PAGE:811/7/10110:4LOGINIS-pamPATH:@sun1/xydisk2/CLS_psycorp/GRP_virginia/JOB_537591g8/DIV_g8mathtestM7080401�CArtCodesM7080401.AR1M7130301�CLArtCodesM7130301.AR1ArtCodesM7130301.AR2M7130301.AR3M7130301.AR4M7130301.AR5825In�ABC,ABmeasures6centimetersandBCmeasures8centimeters.WhatisthelengthofAC?A1.41cmB2cmC5.29cm�D10cm26Thesefiguresareall—FpyramidsGprisms�HcylindersJcones27Whatistheareaofthisfigure?A19cm2B24cm2C27cm2�D35cm2ABC687cm4cm3cm5cmSESSION:22PAGE:911/7/10110:4LOGINIS-pamPATH:@sun1/xydisk2/CLS_psycorp/GRP_virginia/JOB_537591g8/DIV_g8mathtestM8110405�CArtCodesM8110405.AR1M8100206�CArtCodesM8100206.AR1M7080203�CArtCodesM7080203.AR1928Thisshowsthreedifferentviewsofathree-dimensionalfigureconstructedfromcubes.Whichofthefollowingcouldbethefigure?29If∠∠QRSand∠∠XYZarecomplementary,whichmustbetrue?AOneoftheanglescanmeasurebetween90�and180�.BThesumofthemeasuresoftheanglesis90�.�CThesumofthemeasuresoftheanglesis180�.DBothanglesmustmeasuremorethan90�.30Whatisthelengthofsidenonthesecondtriangle?F2G2.5�H4J5TopFrontSideFGHJ�37°50°50°37°n8102SESSION:22PAGE:1011/7/10110:4LOGINIS-pamPATH:@sun1/xydisk2/CLS_psycorp/GRP_virginia/JOB_537591g8/DIV_g8mathtestM7130401�CArtCodesM7130401.AR1ArtCodesM7130401.AR2M7130401.AR3M7130401.AR4M7130401.AR5M8070303�CM7120304�CLArtCodesM7120304.AR11031AdaandJimreceivedawardsforplacingeitherfirst,second,orthirdintheirrespectivedivisionsateachofthe12trackmeetsattendedbytheteam.Thetableindicatestheresults.Whichmatrixbestorganizestheinformationinthetable?32ThetableshowstheMathandEnglishscoresofArtand4ofhisfriends.WhichscattergramcorrectlyshowstherelationshipbetweenMathandEnglishscoresforthegroupoffriends?Meet#Ada1stJim2nd11st2nd22nd1st33rd1st41st3rd51st2nd62nd3rd72nd1st81st2nd91st1st103rd1st111st1st12AdaJim1st2nd3rd�674322�AdaJim1st2nd3rd�764322�AdaJim1st2nd3rd�763422�AdaJim1st2nd3rd�665322�ABCD�StudentArtBonnieCathyDonEllieMath8467927578English7876857588Math60657075808590956065707580859095100EnglishMath60657075808590956065707580859095100EnglishMath60657075808590956065707580859095100EnglishMath60657075808590956065707580859095100EnglishFGHJ�SESSION:22PAGE:1111/7/10110:4LOGINIS-pamPATH:@sun1/xydisk2/CLS_psycorp/GRP_virginia/JOB_537591g8/DIV_g8mathtestM8140301�CLArtCodesM8140301.AR1M7200304�CArtCodesM7200304.AR1ArtCodesM7200304.AR2M7200304.AR3M7200304.AR4M7200304.AR51133Maria’stestscoresforthegradingperiodare78,50,80,83,81,and50.Whichmeasurewouldreportthehighestresult?AMeanBMedian�CModeDRange34Thegraphshowstheamountofmoneyearnedperweekby5studentsintheirsummerjobs.Tynanearned$80perweekmorethanSilas.Whichcouldbeherweeklysalary?F$115G$250H$275�J$290SESSION:22PAGE:1211/7/10110:4LOGINIS-pamPATH:@sun1/xydisk2/CLS_psycorp/GRP_virginia/JOB_537591g8/DIV_g8mathtestM6190401�CM6180299�CArtCodesM6180299.AR11235ThelistshowsthescoresmadebyeachmemberofJaime’sdiscussiongrouponthelasttest.6979629373817378Whichbox-and-whiskersplotcorrectlydisplaystheinformation?36ThisisalistofBeth’sEnglishhomeworkscoresforthegradingperiod.93,83,64,84,76,83,78,76,60,81Whichstem-and-leafplotcorrectlydisplaystheinformation?1009080706050100908070605010090807060501009080706050ABCD�StemLeaf6789StemLeaf678946,81,3,43StemLeaf678946,6,81,3,3,43StemLeaf67890,46,6,81,3,3,43FGHJ�SESSION:22PAGE:1311/7/10110:4LOGINIS-pamPATH:@sun1/xydisk2/CLS_psycorp/GRP_virginia/JOB_537591g8/DIV_g8mathtestM7200203�CLArtCodesM7200203.AR1M7200203.AR2M7200203.AR3M7200203.AR4M7200404�CArtCodesM7200404.AR1M7200404.AR2M7200404.AR3M7200404.AR41337Thegraphshowsthenumberofbookscheckedoutatthepubliclibraryeachdaylastweek.Onwhichdaywerethere3timesasmanybookscheckedoutasonTuesday?AWednesdayBThursdayCFriday�DSaturday38JoanandBarryarecandidatesforclasspresident.Orville,Sally,Consuela,Harry,andRebeccaarecandidatesforvicepresident.Sam,William,andFredericaarecandidatesforsecretary.Howmanydifferentcombinationsofpresident,vicepresident,andsecretaryarepossible?F11G18H30�J4039Daveisamemberofabowlingleague.Thetablebelowshowshisrecordforthelast10games(100frames)hebowled.Basedonhispreviousrecord,whatistheprobabilitythatDavewillbowlastrikeinthenextframe?A3100B350C325�D625MondayTuesdayWednesdayThursdayFridaySaturdayEachrepresents10BooksBooksCheckedOutTypeofBallStrikeNumberofFrames12Spare26Gutterball3Other59Dave’sBowlingResultsSESSION:22PAGE:1411/7/10110:4LOGINIS-pamPATH:@sun1/xydisk2/CLS_psycorp/GRP_virginia/JOB_537591g8/DIV_g8mathtestM8130104�CArtCodesM8130104.AR1M7180303�CLM8120101�CArtCodesM8120101.AR11440ThegraphshowstheannualsalesfortheGambitNoveltyCompanysince1975.Whichisthebestpredictionforsalesintheyear2005?F$375,000G$400,000H$425,000J$450,000�41Rheatookasurveyofthestudentsinherclasstofindoutabouttheircareerinterests.Theresultsareshowninthegraph.Themodeofthedataisassociatedwithwhichcareer?AHealthRelatedBEngineering/ScienceCEducationDComputers�19751985Year199519801990050100150200250300350400450500GambitNoveltySalesThousandsofDollarsFavoriteCareersCareerNumberofStudentsHealthRelatedComputersEducationEngineering/ScienceArts/Drama024681012SESSION:22PAGE:1511/7/10110:4LOGINIS-pamPATH:@sun1/xydisk2/CLS_psycorp/GRP_virginia/JOB_537591g8/DIV_g8mathtestM8130401�CArtCodesM8130401.AR1M8130204�CArtCodesM8130204.AR11542Howmanyofthesectionsofthespinnershownaboveshouldbecoloredblueinordertomaketheprobabilityofthearrowlandingonblue0.375inasinglespin?F1G3�H5J743Workingtogether,JoyandStevecollected39poundsofaluminumcansforrecycling.IfJoycollectedjpounds,whichofthefollowingshowsthenumberofpoundscollectedbySteve?Aj�39Bj�39C39�j�D39j44PointsA,B,andCareverticesofaparallelogram.Whatarethecoordinatesofthefourthvertex?F(0,0)G(0,1)H(�1,1)�J(�1,�1)45Whatisthesolutionto5a�11�3a�7��4?Aa��114Ba��74Ca��1�Da�0ABCSESSION:22PAGE:1611/7/10110:4LOGINIS-pamPATH:@sun1/xydisk2/CLS_psycorp/GRP_virginia/JOB_537591g8/DIV_g8mathtestM8120402�CArtCodesM8120402.AR1M7230401�CM7260206�CArtCodesM7260206.AR1M8160210�CL1646Thetableshowssomeelementsofafunction.Whatisthemissingruleinthistable?F2nGn�22�H2n�12J3n4734�8133�2732�931�330�13�1�133�2�19Whatisthevalueof3�4?A16B124C127D181�48If34(x�4)�9,whatisthevalueofx?F8G12H16�J171349Arockthatweighed1.2poundsonthemoonweighed7.06poundsonEarth.Abouthowmuchwouldanastronautwhoweighs174poundsonEarthweighonthemoon?A14.5lbsB24.65lbsC29.58lbs�D1,023.53lbs50Roxanne’scarused4.8gallonsofgasolinetodrive124miles.IfRoxannehas180moremilestogo,whichisclosesttotheadditionalnumberofgallonsofgasolinethecarwillusetocompletethetrip?F2.5G7.0�H7.3J14.1n1?32242352462SESSION:22PAGE:1711/7/10110:4LOGINIS-pamPATH:@sun1/xydisk2/CLS_psycorp/GRP_virginia/JOB_537591g8/DIV_g8mathtestM8150305�CArtCodesM8150305.AR1M6220204�CLM8160206�CLM8190304�CLM8190401�C1751Whenanyterminthissequenceisdividedbythepreviousterm,theresultisalwaysthesame.3,�6,12,�24,...Whatisthe7thtermofthissequence?A�192B�96C96D192�52When10isaddedtotheproductof5andanumber,theresultis50.Whatisthenumber?F5G8�H10J1253Whatvalueofxsatisfiesthefollowing?4x�12�100A13B22�C28D3754Whichofthefollowingisnottrue?F3x�8isanexpressionwithonevariable.G6x�2y�7isanexpressionwith3terms.HIntheexpression,4x�6y,thecoefficientofxis4.J5x�4�39isanexpression.�55Whatisthesolutionto12x�3�7?A2B4C5D8�56Whatisthesolutionto10x�13�17?Fx�0.3Gx�0.4�Hx�3.0Jx�4.0SESSION:22PAGE:1811/7/10110:4LOGINIS-pamPATH:@sun1/xydisk2/CLS_psycorp/GRP_virginia/JOB_537591g8/DIV_g8mathtestM6210404�CM725A301�CM725A204�CM7240306�CLM725A491�CM8160211�C1857Thetableshowssomeelementsofafunction.Whatisthemissingruleinthistable?A2n�1B2n�1C3nD4n�3�58EricistwiceasoldashisbrotherLucas.If4issubtractedfromEric’sageand4isaddedtoLucas’sage,theirageswillbeequal.Whataretheboys’agesnow?F12and6G14and7H16and8�J18and959Whichmeans“6lessthan5timesanumberis4morethan3timesthatnumber”?A5n�6�3n�4�B5(n�6)�3(n�4)C6�5n�4�3nD5(3n�4)�660Whichgraphshowsalinethatcontainsthepointsinthetableoforderedpairs??1234n15913xy2510–3–2–5–4–3–2–1–1–2–3–4–501234512345yx–5–4–3–2–1–1–2–3–4–501234512345yx–5–4–3–2–1–1–2–3–4–501234512345yx–5–4–3–2–1–1–2–3–4–501234512345yxFGHJ�SESSION:23PAGE:1911/7/10113:33LOGINIS-pamPATH:@sun1/xydisk2/CLS_psycorp/GRP_virginia/JOB_537591g8/DIV_g8mathtestM8150303�CLArtCodesM8150303.AR1M8190117�CM7230202�CM8170305�CLArtCodesM8170305.AR1ArtCodesM8170305.AR2M8170305.AR3M8170305.AR4M8170305.AR519AnswerKeyTestSequenceCorrectAnswerReportingCategoryReportingCategoryDescription1B005NumberandNumberSense2G005NumberandNumberSense3D005NumberandNumberSense4J005NumberandNumberSense5B005NumberandNumberSense6J005NumberandNumberSense7A005NumberandNumberSense8J005NumberandNumberSense9C006ComputationandEstimation10G006ComputationandEstimation11B006ComputationandEstimation12F006ComputationandEstimation13B006ComputationandEstimation14G006ComputationandEstimation15B006ComputationandEstimation16H007MeasurementandGeometry17B007MeasurementandGeometry18G007MeasurementandGeometry19D007MeasurementandGeometry20H007MeasurementandGeometry21C007MeasurementandGeometry22G007MeasurementandGeometry23D007MeasurementandGeometry24H007MeasurementandGeometry25C007MeasurementandGeometry26G007MeasurementandGeometry27C007MeasurementandGeometry28G007MeasurementandGeometry29B007MeasurementandGeometry30G007MeasurementandGeometry31C008ProbabilityandStatistics32H008ProbabilityandStatistics33B008ProbabilityandStatistics34H008ProbabilityandStatistics35C008ProbabilityandStatistics36J008ProbabilityandStatistics37C008ProbabilityandStatistics38H008ProbabilityandStatistics39C008ProbabilityandStatistics40J008ProbabilityandStatistics41D008ProbabilityandStatistics42G008ProbabilityandStatisticsSESSION:22PAGE:2011/7/10110:4LOGINIS-pamPATH:@sun1/xydisk2/CLS_psycorp/GRP_virginia/JOB_537591g8/DIV_g8mathtestTestSequenceCorrectAnswerReportingCategoryReportingCategoryDescription43C009Patterns,Functions,andAlgebra44H009Patterns,Functions,andAlgebra45C009Patterns,Functions,andAlgebra46G009Patterns,Functions,andAlgebra47D009Patterns,Functions,andAlgebra48H009Patterns,Functions,andAlgebra49C009Patterns,Functions,andAlgebra50G009Patterns,Functions,andAlgebra51D009Patterns,Functions,andAlgebra52G009Patterns,Functions,andAlgebra53B009Patterns,Functions,andAlgebra54J009Patterns,Functions,andAlgebra55D009Patterns,Functions,andAlgebra56G009Patterns,Functions,andAlgebra57D009Patterns,Functions,andAlgebra58H009Patterns,Functions,andAlgebra59A009Patterns,Functions,andAlgebra60G009Patterns,Functions,andAlgebraSESSION:22PAGE:2111/7/10110:4LOGINIS-pamPATH:@sun1/xydisk2/CLS_psycorp/GRP_virginia/JOB_537591g8/DIV_g8mathtest