第一阶段模拟考试三年级附有答案

美国MathLeague\n第一阶段模拟考试\n(三年级)[复制](答题时间：75分钟，总分：175分)学生诚信协议：答题期间，我确定没有就所涉及的问题或结论，与任何人、用任何方式交流或讨论，我确定我所填写的答案均为我个人独立完成的成果，否则愿接受本次成绩无效的处罚。Name：[填空题]*_________________________________姓名：[填空题]*_________________________________PhoneNumber：[填空题]*_________________________________选择题：每小题5分，答对加5分，答错不扣分，共175分。1.

Whatis2019roundedtothenearesthundred?[单选题]*A)1000B)1900C)2000(正确答案)D)21002.

10×100×1000×10000=100×1000000000÷?[单选题]*A)10(正确答案)B)100C)1000D)100003.

MysisterandIeachhaveanoddnumberoffish.Ifweputthemallinonefishtank,?cannotbethenumberoffishinthetank.[单选题]*A)2B)85(正确答案)C)100D)20224.

9×?=9+99+999[单选题]*A)111B)123(正确答案)C)130D)1335.

Whichofthefollowingpolygonshasanoddnumberofsides?[单选题]*A)octagonB)trapezoidC)pentagon(正确答案)D)hexagon6.

IftodayisSunday,whatdaywasit19daysago?[单选题]*A)FridayB)SaturdayC)MondayD)Tuesday(正确答案)7.

4dozensocks=?pairsofsocks[单选题]*A)2B)24(正确答案)C)48D)968.

IfZachmultipliedthewholenumberonhisshirtbyitself,whichofthefollowingcouldbehisresult?[单选题]*A)24B)25(正确答案)C)26D)279.

Thereare30studentsinmyclass.Eighteenofthemcanjuggle,tenofthemcanrideaunicycle,andsixofthemcandoneither.Howmanycandoboth?[单选题]*A)2B)4(正确答案)C)6D)810.

Whichofthefollowingresultsinanoddnumber?[单选题]*A)even×oddB)odd×evenC)odd+even(正确答案)D)odd+odd11.

Tomisabasketballlover!Onhisbook,hewrotethephrase"ILOVENBA"100times.Whatisthe500thletterhewrote?[单选题]*A)LB)BC)V(正确答案)D)N12.

If1apple,2bananas,and3cherriescost$9intotal,3apples,2bananas,and1cherrycost$7intotal,whatisthetotalcost,indollars,of1apple,1banana,and1cherry?

[单选题]*A)3B)4(正确答案)C)5D)613.

12×13×14×15×16=24×26×28×30×?[单选题]*A)1(正确答案)B)2C)8D)1614.

Inthediagram,threerectanglesarepictured-twosmallonesandonelargerone.Howmanyrectanglesarepicturedin?

[单选题]*A)7B)9C)16D)18(正确答案)15.

Chocolatebarsof36,48and54gramsarebrokenapartsothatallofthepiecesofallofthebarsareofequalweight.Ifthesepiecesarethelargestpossible,howmanypiecesarethereintotal?[单选题]*A)21B)23(正确答案)C)30D)4216.

AtWilly'sCandyShoppe,maltballsarepricedperounceandthereisalsoachargeof25centsforeachbag.IfCindypays75centsforher5ouncebagofmaltballs,howmuchisa10ouncebagofmaltballs?[单选题]*A)$1.00B)$1.25(正确答案)C)$1.50D)$1.7517.

Whichofthefollowingnumberleavesaremainder,whichisaprimenumber,whendividedby8,9,and10?(Theremainderswhendividedby8,9,and10arenotnecessarythesame.)[单选题]*A)75(正确答案)B)54C)33D)2118.

Sheilasellsseashellsfor$5andmakesa$10bonusforeverysixshellsshesells.Ifshemade$100,howmanyseashellsdidshesell?[单选题]*A)12B)16(正确答案)C)20D)2419.

Whichofthefollowingexpressionshasthelowestvalue?[单选题]*A)1÷(2÷3)B)(1÷2)÷3(正确答案)C)(3÷2)÷1D)3÷(2÷1)20.

Ihaveapizzathatcanbecutintoeither12equalsmallslicesor8equallargeslices.IfI'vealreadycut4largeslicesfromthepizza,howmanysmallslicescanIcutfromwhatremains?[单选题]*A)2B)4C)6(正确答案)D)821.

Mysquarehasanareaof4cm2.Thesidesofyoursquarearethreetimesaslongasthesidesofmysquare.Yoursquarehasarea

?

cm2.[单选题]*A)9B)16C)24D)36(正确答案)22.

Ifateachergiveseachofhisstudents4crayonsfromhisboxofcrayons,16crayonsremain.Ifinsteadhegiveseachstudent6crayonsfromthisbox,2crayonsremain.Howmanystudentsarethere?[单选题]*A)7(正确答案)B)8C)12D)1423.

Whichofthefollowingpairsofnumbershasthegreatestleastcommonmultiple?[单选题]*A)5,6(正确答案)B)6,8C)8,12D)10,2024.

2hours+?minutes+40seconds=7600seconds[单选题]*A)5B)6(正确答案)C)10D)3025.

Whatistheperimeterofthefigureontheright?Note:Allinterioranglesinthefigurearerightanglesor270°.[单选题]*A)100B)110C)120(正确答案)D)16026.

Thirty-ninehoursafter9:00AMis(

).[单选题]*A)1:00AMB)12:00PMC)8:00PMD)12:00AM(正确答案)27.

111...111(thenumberconsistingof20161's)isnotamultipleof(

).[单选题]*A)11B)111C)1111D)11111(正确答案)28.

Thesumofthetensdigitandtheunitsdigitofthesum1+12+123+1234+...+123456789is(

).[单选题]*A)4B)5(正确答案)C)6D)729.

Eighteenyearsfromnow,myagewillbe4morethantwicemycurrentage.Myagenowis(

).[单选题]*A)12B)14(正确答案)C)16D)1830.

Therangeofasetofnumbersisthedifferencebetweenthegreatestandtheleastnumberintheset.ThenumbersinsetAare10,20,30,40,and50.IfeachnumberinsetAisdoubledandthenincreasedby10,whatistherangeofthissetofnumbersnow?[单选题]*A)40B)80(正确答案)C)90D)10031.

3×2017=?÷3[单选题]*A)2017÷3B)2017C)2017×3D)2017×9(正确答案)32.

If3teachersate12cookieseachand2studentsate14cookiesintotal,whatistheaveragenumberofcookiesthateachpersonate?[单选题]*A)8B)9C)10(正确答案)D)1233.

Tworectangleshavethesamearea.Ifthelengthofthefirstoneishalfthelengthofthesecondone,thenthewidthofthefirstoneis?timesthewidthofthesecondone.[单选题]*A)1/2B)2(正确答案)C)4D)834.

Johnlovescollectingstamps!Ifhedivide