100（7/10-1/5+2/1-0.01)= (-2/1)(-7/4)*(-8)=__ 两道题请大虾们帮帮小妹

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100*（7/10-1/5+2/1-0.01)=______(-2/1)*(-7/4)*(-8)=________两道题请大虾们帮帮小妹100*（7/10-1/5+2/1-0.01)=______(-

100*（7/10-1/5+2/1-0.01)=______ (-2/1)*(-7/4)*(-8)=________ 两道题请大虾们帮帮小妹
100*（7/10-1/5+2/1-0.01)=______ (-2/1)*(-7/4)*(-8)=________ 两道题请大虾们帮帮小妹

100*（7/10-1/5+2/1-0.01)=______ (-2/1)*(-7/4)*(-8)=________ 两道题请大虾们帮帮小妹
100*（7/10-1/5+2/1-0.01)
=100*（7/10-2/10+5/10-0.01）
=100*0.09
=9
(-2/1)*(-7/4)*(-8)
=7/8*(-8)
=-7