问题描述:
在下面各题的等号左边添上合适的预算符号和括号,使计算结果正好等于右边的数.
3()3()3()3= 5 3()3()3()3= 6
3()3()3()3= 7 3()3()3()3=8
3()3()3()3= 2
3()3()3()3= 4
3()3()3()3= 5 3()3()3()3= 6
3()3()3()3= 7 3()3()3()3=8
3()3()3()3= 2
3()3()3()3= 4
问题解答:
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