9 – 3 ÷ 1/3 + 1 =? The right answer (viral problem in Japan)


What is 9 – 3 ÷ 1/3 + 1 =? This problem became viral in Japan after a study that found that 60% of 20 people could get the correct answer, compared to 90% in the 1980s. I explained a common mistake and how to get the right answer using order of operations.


Sources (Japanese)

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