수학동아 - 폴리매스

함께 풀고 싶은 문제

창의력을 기를 수 있는 수학 문제 또는 퍼즐을 내는 곳입니다.

[창의 퍼즐] 10 만들기

뉴＿턴 2019.10.07 00:30 조회 493

문제 푼 사람 1명

페이스북 트위터 카카오톡 카카오스토리 네이버블로그 네이버밴드

문제 1

9, 3, 7, 2과 사칙연산과 괄호만을 이용해서 10을 만들어라

문제 2

8, 4, 7, 3과 사칙연산, 괄호만들 이용해서 10을 만들어라

(단, 예를 들어서 9, 3을 아용해서 93을 만드는 것은 불가능하다)

이전글 이상한 할아버지

다음글 엉뚱엉뚱

이 문제 어떠셨나요?

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K→C≡N Lv.11 2019.10.07 00:38

순서 바꿔도 되요?

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- 뉴＿턴 Lv.8 2019.10.07 00:50
  
  네!
  
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Sigmatheta Lv.5 2019.10.07 00:48 비밀댓글

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- 뉴＿턴 Lv.8 2019.10.07 00:51
  
  2번은 그렇게 하면 안되서 부분해결 드렸습니다.
  
  좋아요0
- Sigmatheta Lv.5 2019.10.07 00:56 비밀댓글
  
  비밀 댓글이 등록 되었습니다!
- 뉴＿턴 Lv.8 2019.10.07 04:23
  
  그렇게 하면 안 보여요 새로운 댓글로 비밀댓글로 달아주세요
  
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은총알 Lv.11 2019.10.07 00:52 비밀댓글

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- 뉴＿턴 Lv.8 2019.10.07 00:55
  
  Sigmatheta님이랑 또 다른 방법이네요! 정답입니다. 근데 2번 은 안 푸셔서 부분정답 하겠습니다. 풀면 정답으로 할께요
  
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수학오리 Lv.4 2019.10.07 01:22 비밀댓글

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수킹 Lv.6 2019.10.07 02:01 비밀댓글

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수킹 Lv.6 2019.10.07 02:02

그런데 수를 2번 써도 되나요?

?

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- 뉴＿턴 Lv.8 2019.10.07 04:24
  
  안됩니다.
  
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21세기오일러 Lv.11 2019.10.07 03:48 비밀댓글

확인요청중

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- 뉴＿턴 Lv.8 2019.10.07 04:25
  
  가우스 함수는 사용하면 안 됩니다.
  
  좋아요0
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21세기오일러 Lv.11 2019.10.07 03:52 비밀댓글

확인요청중

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File: /volume1/web/PhpstormProjects/www_polymath_co_kr/application/libraries/Common.php
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File: /volume1/web/PhpstormProjects/www_polymath_co_kr/application/libraries/Common.php
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Function: mkdir

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File: /volume1/web/PhpstormProjects/www_polymath_co_kr/application/libraries/Common.php
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Function: getLatexImg

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Function: require_once

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File: /volume1/web/PhpstormProjects/www_polymath_co_kr/application/libraries/Common.php
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Function: getLatexImg

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Function: parseLatexImg

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Function: view

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Function: require_once

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File: /volume1/web/PhpstormProjects/www_polymath_co_kr/application/libraries/Common.php
Line: 213
Function: file_put_contents

File: /volume1/web/PhpstormProjects/www_polymath_co_kr/application/libraries/Common.php
Line: 236
Function: getLatexImg

File: /volume1/web/PhpstormProjects/www_polymath_co_kr/application/views/ver3/inc/view_comment_list.php
Line: 90
Function: parseLatexImg

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Function: view

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Line: 315
Function: require_once

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- 뉴＿턴 Lv.8 2019.10.07 04:25
  
  마찬가지....
  
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K-RIEMANN Lv.10 2019.10.07 04:48 비밀댓글

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Sigmatheta Lv.5 2019.10.08 00:26 비밀댓글

비밀 댓글이 등록 되었습니다.

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21세기오일러 Lv.11 2019.10.08 03:10

아닛, 가우스함수의 기호가 괄호라서 될 수도 있다고 생각했는데!

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- 수킹 Lv.6 2019.10.09 04:33
  
  으악아라가가가가
  
  정말 어렵당,!!!!!!!!!!!!!!!11
  
  좋아요0