US 2018 Math kangaroo Problems Level 3-4-学生用卷
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2022-12-21 20:20:12
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US2018MathkangarooProblemsLevel3-4-学生用卷学生用卷1、【来源】2018年袋鼠数学竞赛(MathKangaroo)竞赛第1题(US2018MathkangarooProblems,Level3−4,Question#1)Lcnahas10rubberstamps.Eachstamphasoncofthedigits:0,1,2,3,4,5,6,7,8and9.ShestampsthedateoftheKangaroocontest:03152018Howmanyofthestampsdocssheusc?()A.5B.6C.7D.9E.102、【来源】2018年袋鼠数学竞赛(MathKangaroo)竞赛第2题(US2018MathkangarooProblems,Level3−4,Question#2)Thepictureshows3arrowsthatareflyingand9balloonsthatcan'tmove.Whenanarrowhitsaballoon,theballoonpops,andthearrowkecpsflyinginthesamedirection.Howmanyballoonswillbehitbytheflyingarrows?()A.2B.3C.4D.5
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