What is 9 - 3 ÷ (1/3) + 1 = ? This problem went viral in Japan after a study found 60 percent of 20 somethings could get the correct answer, down from a rate of 90 percent in the 1980s. I explain a common mistake and how to get the correct answer by using the order of operations.
9 - 3 ÷ 1/3 + 1 = ? The Correct Answer (Viral Problem In Japan)
Full study (in Japanese, see page 20 of document). I relied on the English source listed below and Google translations other Japanese media who interpreted the statistics.
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