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[수와 연산] 새로운 7의 배수 판정법이라고? 기존과 똑같은데?!
수학동아 2020.06.24 01:20 조회 1446
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페이스북 트위터 카카오톡 카카오스토리 네이버블로그 네이버밴드

 

2020년 1월 5일 폴리매스 게시판에 1월호 수학 뉴스 내용이 이상하다는 글이 올라왔습니다. 1월호에는 나이지리아의 12세 학생이 새로운 7의 배수 판정법을 발견해 상을 받았다는 소식이 실렸는데요, 글을 쓴 이서준 학생에 따르면 이 7의 배수 판정법은 기존 방법과 똑같다고 합니다. 이서준 학생이 왜 이런 주장을 하게 됐는지 김 기자의 팩트체크에서 확인해봅니다.

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#7의 배수 # 배수판정법 # 음수의 나눗셈 # 나머지
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