十道初一数学有理数乘法混合运算题

1.(-100)x(-20)x(-5)=2000x(-5)=-10000
2.(0.7)x(负的1又五分之三）=-28/25
3.(-2)x(-1/2)x(-3)=-3
4.(-1/2)x6=-3
5.(-152)x0x(-21)=0
6.(-1/2)x(-1/3)=1/6
7.(3/10)x(-1/4)=-3/40
8.-24x(1/3)x(-7/12)=7/6
9.-0.32x(-4.58)-0.68x(-4.58)=(-4.58)x[(-0.32)+(-0.68)]=(-4.58)x(-1)=4.58
10.[(3/10)-(1/2)+(1/5)-0.1]x(-10)=(3/10)x(-10)-(1/2)x(-10)+(1/5)x(-10)-0.1x(-10)=-3+5-2+1=1