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수학동아 - 폴리매스
본문바로가기
함께 풀고 싶은 문제
창의력을 기를 수 있는 수학 문제 또는 퍼즐을 내는 곳입니다.
[창의 퍼즐] 34등 기념
△π 2020.04.02 22:50 조회 349
문제 푼 사람 0명
공유하기
페이스북 트위터 카카오톡 카카오스토리 네이버블로그 네이버밴드

34는 왼쪽에서 오른쪽으로 갈 수록 숫자가 증가하는 수이다.

(1)왼쪽에서 오른쪽으로 갈수록 숫자가 증가하는 수의 갯수를 구하여라.

(2)20자리 자연수중 왼쪽에서 오른쪽으로 갈수록 숫자가 같거나 증가하는 수의 갯수를 구하여라.

(3)왼쪽에서 오른쪽으로 갈수록 숫자가 감소하는 수의 갯수를 구하여라.

(4)20자리 자연수중 왼쪽에서 오른쪽으로 갈수록 숫자가 같거나 감소하는 수의 갯수를 구하여라.

이 문제 어떠셨나요?

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댓글 4
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  •  
    Turgon Lv.6 2020.04.02 23:01

    오~! 1번 잘내신 듯하네요

    댓글 작성하기 좋아요0 댓글수1
    •  
      △π Lv.9 2020.04.02 23:08

      감사합니다^^

      좋아요0
  •  
    Abiria♡ Lv.8 2020.04.03 08:04

    1번 문제의 범위는 어디까지인가요?

    댓글 작성하기 좋아요0 댓글수1
    •  
      △π Lv.9 2020.04.03 17:06 비밀댓글
      비밀 댓글이 등록 되었습니다!
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