小学英语奥数题

1、Sixtreesareequallyspacedalongonesideofastraightroad.Thedistancefromthefirsttreetothefourthis60feet.Whatisthedistanceinfeetbetweenthefirstandlasttrees?2、Attheendof2005Walterwashalfasoldashisgrandmother.Thesumoftheyearsinwhichtheywerebornis3860.HowoldwillWalterbeattheendof2006?3、Thedigits1,2,3,4and9areeachusedoncetoformthegreatestpossibleevenfive-digitnumber.Whatisthedigitinthetensplace?4、Everyedgeofacubeiscoloredeitherredorgreen.Inordertohaveatleastonerededgeoneveryfaceofthecube,findtheminimumnumberofedgesthatmustbecoloredred.5、When31513and34369aresuchdividedbyacertain3-digitnumber,theremaindersareequal.Findthisremainder.6、Threesignallightsweresettoflasheverycertainspecifiedtime.Thefirstlightflashesevery12seconds,thesecondflashedevery30secondsandthethirdoneevery66seconds,thesignallightsflashsimultaneouslyat8:30am.Atwhattimewillthesignallightsnextflash。7、Therearefiveballswithdifferentweights.Everyballislessthan(少于）100g。Nowweigh（称）everytwoballs，andyouwillget113,116,110,117,118,114,112,121,120,and115g.Whatistheweightoftheheaviest(最重的)ball?AuntMaybought45lillipopsand75barsofchocolateforherniece'sbirthdayparty.Shewantstopackthesetwoitemsequallyintoasmanypacketsaspossible.Howmanylillipopsandchocolatesmustsheputineachpachet?小升初英文奥数题一班级_______姓名_______成绩_______1、In2004,16JunefallsonaWednesday.Onwhatdayoftheweekwill16Junefallin2010?2、Inamagicsquarethesumofthenumbersineachrow,ineachdiagonalandineachcolumnareequal.Inthismagicsquarethevalueofxis:3、Ifhalfofanumberis30,thenthree-quartersofthatnumberis____.4、Thesumofthedigitsofthefollowingproduct999×5555、Threepositiveintegershaveasumof28.Thegreatestpossibleproductthattheseintegerscanhaveis_____.6、Jackwastryingtotessellateregularpentagons.Hemanagedthefollowingfigure.Thesizeofangle.a.is______.7、Iftheareaoftheshadedregionoftheregularhexagoninthediagrambelowis36cm2,theareaofthewholehexagonincm2is_____.8、Inwhatfollows,□andΔaredifferentnumbers.When503isdividedby□theremainderis20.When503isdividedbyΔtheremainderis20.When493isdividedby□xΔtheremainderis_____.9、Alady,herbrother,hersonandherdaughter(allrelatedbybirth)playedvolleyball.Theworstplayer'stwin(whoisoneofthefourplayers)andthebestplayerareofoppositesex.Theworstplayerandthebestplayerareofthesameage.Whocannotbetheworstplayer(s)?A)brotheronlyB)daughteronlyC)sonanddaughteronlyD)ladyanddaughteronlyE)ladyonly10、Ifyoucontinuethegivennumberpattern,inwhatrowandinwhatpositioninthatrowwillthenumber320be?1--------------row123--------------row2456--------------row378910--------------row4Theanswersaregivenintheorderofrow;position.参考答案1、Wednesday2、123、454、27（求数位上上的数字之和）5、28=9+9+10，因此答案为8106、36度7、1088、503-20=483483=3×7×23＝21×23，因此□xΔ＝483，因此此题余数是10.9、D10、25，20小升初英文奥数题三班级_______姓名_______成绩_______1、Anantcoversadistanceof90metresin3hours.Theaveragespeedoftheantindecimetresperminuteis____.2、Inacertaintownsomepeoplewereaffectedbya'flu'epidemic.Inthefirstmonth20%ofthepopulationcontractedthefluwhile80%werehealthy.Inthefollowingmonth20%ofthesickpeoplerecoveredand20%ofthehealthypeoplecontractedthedisease.Whatfractionofthepopulationishealthyattheendofthesecondmonth?3、Mpho,Barry,Sipho,EricaandFatimaaresittingonaparkbench.Mphoisnotsittingonthefarright.Barryisnotsittingonthefarleft.Siphoisnotsittingateitherend.EricaissittingtotherightofBarry,butnotnecessarilynexttohim.FatimaisnotsittingnexttoSipho.SiphoisnotsittingnexttoBarry.Whoissittingatthefarright?4、Ofthe28T?shirtsinadrawer,sixarered,fiveareblue,andtherestarewhite.IfBobselectsT?shirtsatrandomwhilstpackingforaholiday,whatistheleastnumberhemustremovefromthedrawertobesurethathehasthreeT?shirtsofthesamecolour?5、Inanalienlanguage,jalezborgfarnmeansgoodmathsskills.Nurfklarborgmeansmathsinharmonyanddarkoklarfarnmeansgoodingold.Whatisharmonygoldinthislanguage?6、Fivechildren,Amelia,Bongani,Charles,DevineandEdwina,wereintheclassroomwhenoneofthembrokeawindow.Theteacheraskedeachofthemtomakeastatementabouttheevent,knowingthatthreeofthemalwayslieandtwoalwaystellthetruth.Theirstatementswereasfollows:Amelia:Charlesdidnotbreakit,nordidDevine.Bongani:Ididn'tbreakit,nordidDevine.Charles:Ididn'tbreakit,butEdwinadid.Devine:AmeliaorEdwinabrokeit.Edwina:Charlesbrokeit.Whobrokethewindow?7、Didyouknow?Apalindromeisanumberwhichreadsthesameforwardsasbackwardse.g.35453.Nextyear2002isanexampleofapalindromicnumber.Whatisthedifferencebetween2002andthenumberofthepreviouspalindromicyear?8、Ifab=(3×b)thenthevalueof2(2×a)(35)is____.9、TwoantsstartatpointAandwalkatthesamepace.Oneantwalksarounda3cmby3cmsquarewhilsttheotherwalksarounda6cmby3cmrectangle.Whatistheminimumdistance,incentimetres,anyonemustcoverbeforetheymeetagain?参考答案1、单位换算，注意单词，90×10÷（3×60）＝52、0.683、Erica4、抽屉原则75、注意一一对应，borg=maths,farn=good,jalez=skills.Klar=in,Nurf=harmony,darko=gold.答案是Nurfdarko.6、Charles7、10018、679、1081、In2004,16JunefallsonaWednesday.Onwhatdayoftheweekwill16Junefallin2010?2、Ifhalfofanumberis30,thenthree-quartersofthatnumberis____.3、Thesumofthedigitsofthefollowingproduct999×5554、Threepositiveintegershaveasumof28.Thegreatestpossibleproductthattheseintegerscan