3.5×(-1)= (-10)×(0.2)= (-4)×(18) ×(-25) = 100×(-0.1)×10×(-0.01)=

问题描述:

3.5×(-1)= (-10)×(0.2)= (-4)×(18) ×(-25) = 100×(-0.1)×10×(-0.01)=

3.5×(-1)= -3.5
(-10)×(0.2)=-2
(-4)×(18) ×(-25) =1800
100×(-0.1)×10×(-0.01)=1过程知道啊(-4)×(18) ×(-25) =4x25x18=1800 100×(-0.1)×10×(-0.01)=100x0.01x10x0.1=1