12【】37【】5【】6【】7=1998 在【】里填入合适的运算符号,使等式成立!
12【】37【】5【】6【】7=1998 在【】里填入合适的运算符号,使等式成立!
急*********!
急*********!
数学人气：795 ℃时间：2020-04-14 18:45:58
优质解答
（1+2）×37×（5+6+7）=1998
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