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(-5)*(-6)=___( )= ____
(-3/2)*1/6=___( )= _____
(-3/5)*(-5/3)=___( )=____
= 8*(-1.25)= ___( )=_____
人气:309 ℃ 时间:2019-10-02 20:43:05
解答
(-5)*(-6)=+(5*6)=30
(-3/2)*1/6=-(3/2*1/6)=-1/4
(-3/5)*(-5/3)=+(3/5*5/3)=1
8*(-1.25)=-(8*1.25)=-10
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