48÷2(9+3) 의 답은?
chobo

Lv.1 chobo (121.♡.155.29)

2024년 10월 4일 PM 01:59 · 수정됨(18:23)

조회 863 공감 0

48÷2(9+3) = ?


1. 2

2. 288


전 2라고 생각합니다.


하지만 288이 맞는것 같기도 합니다(응?).

댓글 (14)

  • 그녀는애교쟁이 Lv.1

    24.10.04 · 223.♡.23.137

    2입니다 ㅋ
  • Dimebag™

    Dimebag™ Lv.1

    24.10.04 · 112.♡.32.228

  • 인생여러컷

    인생여러컷 Lv.1 → Dimebag™

    24.10.04 · 220.♡.182.66

    요즘 학교에서는 수학을 안가르치는 걸까요?
    아무리 수포자라 해도 이 정도는 알 것 같은데 말이죠.
    이게 논란'꺼리'가 되나..갸우뚱 하게 되네요.ㄷㄷㄷㄷ
  • 말없는

    말없는 Lv.1 → 인생여러컷

    24.10.04 · 220.♡.44.12

    동영상속의 강사도 말하듯이.. 어.. 그게 그러니까.. 인거죠 ㅎㅎ
  • DdongleK

    DdongleK Lv.1

    24.10.04 · 211.♡.226.185

    2 가 맞죠...?? 어떻게 풀면 288이 나옵니까?
  • 나와함께

    나와함께 Lv.1 → DdongleK

    24.10.04 · 180.♡.27.53

    48/2*12
  • zeno

    zeno Lv.1

    24.10.04 · 211.♡.91.194

    진짜 어떻게 풀면 288이 나오죠?
  • Persona

    Persona Lv.1

    24.10.04 · 121.♡.88.98

    괄호안 덧셈 계산하고 왼쪽에서 오른쪽으로 쭉 연산하면 288이 나오네요.
    하지만 실제 계산에서 2앞에 괄호가 하나더 있다고 판단하는 거니까 2가 정답이네요 ㅋㅋㅋ
  • 한돌

    한돌 Lv.1

    24.10.04 · 203.♡.126.22

    연산기호가 생략된 곱셈을 한 덩어리로 봐서 우선한다는 것이 있기는 한데, 혼동을 일으킬 수 있는 표현은 괄호를 쓰던가 해서 정확하게 표현하는 게 맞다고 생각합니다.
    https://en.wikipedia.org/wiki/Order_of_operations
    Multiplication denoted by juxtaposition (also known as implied multiplication) creates a visual unit and has higher precedence than most other operations. In academic literature, when inline fractions are combined with implied multiplication without explicit parentheses, the multiplication is conventionally interpreted as having higher precedence than division, so that e.g. 1 / 2n is interpreted to mean 1 / (2 · n) rather than (1 / 2) · n.[2][10][14][15] For instance, the manuscript submission instructions for the Physical Review journals directly state that multiplication has precedence over division,[16] and this is also the convention observed in physics textbooks such as the Course of Theoretical Physics by Landau and Lifshitz[c] and mathematics textbooks such as Concrete Mathematics by Graham, Knuth, and Patashnik.[17] However, some authors recommend against expressions such as a / bc, preferring the explicit use of parenthesis a / (bc).[3]
    More complicated cases are more ambiguous. For instance, the notation 1 / 2π(a + b) could plausibly mean either 1 / [2π · (a + b)] or [1 / (2π)] · (a + b).[18] Sometimes interpretation depends on context. The Physical Review submission instructions recommend against expressions of the form a / b / c; more explicit expressions (a / b) / c or a / (b / c) are unambiguous.[16]
    This ambiguity has been the subject of Internet memes such as "8 ÷ 2(2 + 2)", for which there are two conflicting interpretations: 8 ÷ [2 · (2 + 2)] = 1 and (8 ÷ 2) · (2 + 2) = 16.[15][19] Mathematics education researcher Hung-Hsi Wu points out that "one never gets a computation of this type in real life", and calls such contrived examples "a kind of Gotcha! parlor game designed to trap an unsuspecting person by phrasing it in terms of a set of unreasonably convoluted rules."[12]
  • 근두운

    근두운 Lv.1

    24.10.04 · 220.♡.122.218

    다 식고 분해 된 떡밥 아닌가요?ㅎㅎ

댓글을 작성하려면 이 필요합니다.