请将“+”,“-”,“×”,“÷”四种运算符号填入下面算式中,使等式成立
填运算符号咯
7 7 7 7 = 7
四个七用加减乘除连起来,最后等于7!
最好不能有括号哦~
就写几个带括号的吧...
人气:457 ℃ 时间:2019-08-19 01:58:27
解答
(7-7)×7+7=7
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