百萬人答錯的題目,你的答案是?


答案:

6÷2(1+2)=9

乘號省略了,6÷2×(1+2)=?
6÷2×(1+2)
=6÷2×3(括弧先算)
=3×3(從左往右算,乘除沒有優先)
=9





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