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Implicit multiplication order of operation
What is 48÷2(9+3)?

i am so confused after knowing different answer of this ques
48/2(9+3)
though google cal comes up with ans 288 but i have seen its answer 2 on some websites
please clear this confusion

  • 1
    I created a meta thread for discussion of this and similar questions: http://meta.math.stackexchange.com/questions/2127/what-to-do-about-what-is-48-293-type-questions.2011-04-30

1 Answers 1

2

By standard convention, 48/2(9+3) is 288. Anyone who wants to be well understood should write either $\frac{48}{2} (9+3)$ or (48/2)(9+3).

Please don't ask this question again. Instead, look here, here, here, or here.

  • 4
    I don't expect authoritative answers on mathematical conventions from (grade/middle) school teachers or programming languages. Having a strong interest in the history of algebra, I've perused hundreds of (abstract) algebra textbooks from many different time periods. I don't recall a single (modern) author specifying any convention to resolve such ambiguities. Instead, they simply use brackets as need be to resolve the ambiguity.2011-05-01