3()3()3()3 = 4.添在括号加减乘除怎么能等于四

3()3()3()3 = 4.添在括号加减乘除怎么能等于四

3乘以3等于9,再加3等于12,再除以3等于4!

3×3+3÷3=4

（3×3+3）÷3=4

（3×3+3）÷3=4

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