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Function: get_footer

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Function: require_once

수학동아 - 폴리매스
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함께 풀고 싶은 문제
창의력을 기를 수 있는 수학 문제 또는 퍼즐을 내는 곳입니다.
[창의 퍼즐] 1게임
1버트 9슈타인 2020.07.01 20:16 조회 582
문제 푼 사람 0명
공유하기
페이스북 트위터 카카오톡 카카오스토리 네이버블로그 네이버밴드

규칙: 1~n까지의 수를 술래가 말하고 숫자1이 있을때마다 종이에 1,2,3,4......와 같은수를 쓴다음 그수들을 모두 더해 술래에게 말한다.

문제: 술래가 1~1000000000까지의 수를 말할때 얼마를 술래한테 말해야 될까?

이 문제 어떠셨나요?

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