紫色彗星數學競賽真題（2012年高中組）
PURPLE COMET MATH MEET April 2012 HIGH SCHOOL - PROBLEMS Copyright Titu Andreescu and Jonathan Kane Problem 1 Last month a pet store sold three times as many cats as dogs. If the store had sold the...
紫色彗星數學競賽真題（2011年高中組）
PURPLE COMET MATH MEET April 2011 HIGH SCHOOL - PROBLEMS Copyright ?Titu Andreescu and Jonathan Kane Problem 1 The ratio of 3 to the positive number n is the same as the ratio of n to 192. Find n. ...
紫色彗星數學競賽真題（2010年高中組）
PURPLE COMET MATH MEET April 2010 HIGH SCHOOL - PROBLEMS Copyright Titu Andreescu and Jonathan Kane Problem 1 Let x satisfy (6x + 7) + (8x + 9) = (10 + 11x) + (12 + 13x). There are relatively prime...
紫色彗星數學競賽真題（2009年高中組）
PURPLE COMET MATH MEET April 2009 HIGH SCHOOL - PROBLEMS Copyright Titu Andreescu and Jonathan Kane Problem 1 In fifive years, Tom will be twice as old as Cindy. Thirteen years ago, Tom was three t...
AMC10/12 A卷今日落下帷幕！視頻講解搶先預定！
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紫色彗星數學競賽真題（2008年高中組）
PURPLE COMET MATH MEET– April 2008 HIGH SCHOOL – PROBLEMS ? Copyright Titu Andreescu and Jonathan Kane Problem 1 What is the least positive integer with the property that the product of its digits ...
紫色彗星數學競賽真題（2007年高中組）
PURPLE COMET MATH MEET– April 2007 HIGH SCHOOL – PROBLEMS ? Copyright Titu Andreescu and Jonathan Kane Problem 1 The sum of nine consecutive odd numbers is 2007. Find the greatest of these nine num...
AMC/BPhO/PUPC等一大波賽事本月“蜂擁而至”！告別手忙腳亂，這份攻略就夠了！
這個月，搞課外活動的同學們真是有點忙！ AMC、BPhO、PUPC、HiMCM/IMMC…… 全都來了！ 11月賽事活動時間軸 小編為大家整理了本月開賽的活動時間軸，快快收藏！可別因為活動多就手忙腳亂啦！ 11月4日 星期四? HiMCM...
AMC8適合哪些學生？AMC8考察的核心技能與答題技巧分析
AMC學術活動只有數學天才才能參加嗎？AMC8適合哪些學生？當然不是，準確地說，AMC是為那些熱愛解決問題的人設計的！為什么沒有說是為熱愛數學的學生設計的呢？ 因為AMC學術活動和傳統的學校數學大不相同，傳統的...
