1)(-9)×(+三分之二)×(-三分之一)
=9×2/3×1/3
=2
2)(-2)×(-7)×(-5)×(-七分之一)
=(2×5)×(7×1/7)
=10×1
=10
3)(-0.25)×(-九分之七)×4×(-18)
=-(0.25×4)×(7/9×18)
=-1×14
=-14
4)(-3)×(+56)×(-145)×0×(+127)
=0
一个因数为0,积为0
5)(十分之三-二分之一+五分之一-0.1)×(-100)
=-3/10×100+1/2×100-1/5×100+0.1×100
=-30+50-20+10
=10
6)(-3.59)×(-七分之四)-2.41×(-七分之四)+6×(-七分之四)
=(3.59+2.41-6)×4/7
=0×4/7
=0