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수학동아 - 폴리매스
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[잡담] 수학동아 131쪽 오타 발견하였습니다.
푸앵푸앵314 2020.07.30 03:21 조회 790
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페이스북 트위터 카카오톡 카카오스토리 네이버블로그 네이버밴드

2020년 8월호 131쪽 퍼즐 마스터 만들기 대작전 중 '연산 십자말'의 규칙과 예시 본문에 오타가 있습니다.

 

1~9까지의 숫자를 한 번씩만 써서 빈칸에 배치하자. 빈칸 사이의 연산 기호로 계산했을 때 등호 오른쪽 또는 아래 있는 숫자가 되도록 숫자를 채워야 한다. 곱셈, 나눗셈을 먼저 하고 덧셈, 나눗셈을 나중에 한다.

 

마지막 문장에 '덧셈, 나눗셈' 이 아니라 '덧셈, 뺄셈' 인 것 같습니다.

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