2020年美国“大联盟”(Math League)思维探索活动第一阶段三年级试卷

8.There8.Thereare2020gumba11sinagumballmachineIfIremove202gumball^howmanyareA)1818B)1822C)1828D)22229.888-777+666-555=777-666+555-444+?A)0B)222C)444D)888IQ4dozensocks=2pairsofsocksA)2B)24C)48D)9611.Helenwroteoutallthenumbei-sfrom1to60onapieceofpaperHowmanytimesdid12Howmanyminutesisitfrom12:30PMuntil4:00PMtoday?A)180B)2100240D)48013lWhichofthefollowingisnotamultipleof8?A)24+24B)28+28C)38+38D)48+4814Sheilasellsseashellsfor$5andmakesa$10bonusforeveiysixshellsshesellsIfshemade$10。howmanyseashellsdidshesell?A)12B)16C)20D)2413Arectangulartelevisionscreenhasaperimeterof200cmandonesideoflength40cm.Whatisitsarea?A)2000cm2B)2400cm2C)3200cm2D)8000cm216Whichofthefollowingisthesumof3consecutivewholenumbers?A)37B)38C)39D)4017.Eachofmy9cookiejarshasatleast1cookieinilIfeachjs*containsadifferentnumberofcookiestheleastpossibletotalnumberofcookiesA)18B)28C)36D)451&5X45+55X45=A)2700B)2800C)4000D)500019.Whichofthefollowingleavesthelai-gestremainderwhendividedby5?A)10-2B)100-4C)1000-6D)10000-8第2页，共4页IIIIIIif2019-2020年度美国“大联盟”(MathLeague)思维探索活动第一阶段(活动日期：2019年11月24H.答题时间：75分钟，总分：175分)凶1.Whatis2019roundedtothenearesthundred?A)1000B)1900C)2000D)21002.Iwalkmydog28timeseachweekIf1walkhimthesamenumberoftineseveryday,howmanytimesdoIwalkhimeachday?A)2B)43.IftodayisSunday,whatdaywasit19daysago?A)FridayB)SaturdayC)MondayD)Tuesday4.IhaveIwopolygonswithatotalof9sidesIfonepolygonisarhombus,theotherpolygoncouldbeaA)triangleB)rectangleC)pentagonD)hexagon5.CinarreceivedacoloringbookasapresentHecolcredpagenumber4throughpagenumberIQHowmanypagesdidCinarcolor?6.20+(20X20)=A)400B)420C)820D)80007.Whichofthefollowingisanevennumber?A)4+5B)3+5+704+5+6D)3+5+7+9:i考前注意事项：1.本试卷是三年级试卷，清确保和你的参赛年级•致；2.本试卷共4页(正反面都有试题)，请检查是否有空白页，页数是否齐全：3.请确保你已经拿到以下材料：本试卷(共4页，正反面都有试题)、答题卡、答题卡使用说明、英文词汇手册、草稿纸。试卷、答题卡、答题卡使用说明、草稿纸均不能带走，请留在原地。4.本试卷题目很多也很难，期待•名学生所有题目全部答对是不现实的，能够答对一半题目的学生就应该受到表扬和鼓励。选择题：每小题5分，答对加5分，答错不扣分，共175分，答案造填涂在答题卡上。%0W第1页.共4页 81(99(VM£$J。lUQid啤oi霎B哪01°1叫2uinaspunXnq]isnwsaijeocInDXubuimohk)jzIQueqjn^suuopueg$joj£yesajpodn。Xnqueoj韦£8S(Q92(3H(8SI(Vsodijsosdoqo匕q)iMpapersOAeqpjnoo叫：eao伊[soaqsasaaqogaABq[]iMoqXepouou叫)*qoiMpuusipsuosaaijsassaqogs】ndaqj]:isaoijo[sasipdsoaip/OAuq](tmaqXupduouaqipiresqauauosaoifsssaaqo9sind叫j]中!spiresXfrepsiquoind01saaip;asaaqoiqSnoq。河££oqqoeoPfnoos应qumujoqioaqi,pnbaaresjaquinugjaq;oaq;pue^siisquinuauojj-jaquinuajoqMvsisjaqiunu£jooSaiaAeaqi我网bo3ggaioosoiuiiq。啊巨[时Xuewmoht)wb2jCioaoulsjboSomisaioospueXepX.K)Adaiub3.laoooseseqqBOfjqg9(QVO£(8Z(V&isaiuojisanb-QQijaq.k)jpaou叫ssmops>pRdXuriuMoqisbs]ibjos^oedinaujoosuasBiaj]siqmsubsqssuoiisanbgjXjsas.kjjjuosb.19aqiumomisasnRjpu%。£sol(a90iovs(ass(v啊ajpsunoqsqijoums叫ipmbasiiSipsamuimaqijournsmipsmops.moquisawi;Xuruimo]|89：i[qSnaqi00:2Iukujsmm口3uM8[ds甲t»pXo.moq-g|fuosiJ|3opp?ii3ip,项弓£冈言唐*鱼诉计’垣£鬼冈言唐*鱼诉计’垣£鬼CU?^jpsaisiqaqpjnooSulmohoj叫)joqoiqM•jjasiiAq^.nqssiquojoqiunuojoqmoqipqdpjnwqa^zjj罗[auBiixu[顼q_gbu]可urocfepaAOiouopiwpsajJiURioajXupiuMoq;somiystazisXuejoaienbsvSupeaK)inoq其mu*aipaqtreoieq)suiauiSasaurjqonsjojaquinujsajeaiSaqiniaiSBipaqiinsgpluaoefpugpauuoouik)q«q)siuauiSasaur(paopjSApile^uozuoqz\Apouxaareaiaq】££(GL\O91(80(V战Xq9[qisiAipare66PUBIuaaMjaqsjaqmnuppoXubuimojj8/£(GM(D&1B9so{jbjpipBzzidaqijo uorpay网m啊[sauoruxoaqiaxeaqjjspuapgxissiqpin?jpsuiiqqxjMaieqsoi湖j{sp?nbaiq8raojuiuzzidejnosope。speaqquo*arespuowvipz,auieSu[puoiuejp\quo*aresqnpzpuusqnp\qyoMsixreaq\前晌piieoXwuj&o3eSJB9Xgjtpsaite.naqijourns叫isfm1叫MV3s!soSbsQupNPur叫fJ。mns叫上09(fl99O&mx)sKqqef)pips