2017 Junior Kangaroo-教师用卷
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2022-12-26 21:10:11
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2017JuniorKangaroo-教师用卷教师用卷1、【来源】(2017JuniorKangarooQuestion#1)KierantheKangarootakes6secondstomake4jumps.Howlongdoesittakehimtomake30jumps?()A.30secondsB.36secondsC.42secondsD.45secondsE.48seconds【答案】D;【解析】Kieranmakes4jumpsin6secondssomakes2jumpsin3seconds.Thereforeitwilltakehim(30÷2)×3seconds=45secondstomake30jumps.2、【来源】(2017JuniorKangarooQuestion#2)Sophiewantstocompletethegridshownsothateachrowandeachcolumnofthegridcontainsthedigits1,2and3exactlyonce.Whatisthesumofthedigitsshewillwriteintheshadedcells?()A.2B.3C.4D.5E.6【答案】C;【解析】Labelthenumberstobewritteninthecellsofthegridasshown.
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