乘数里有4个负数 结果为正数 算式可以改为 8×12×0.125÷3×0.001=96×0.125÷3×0.001=12÷3×0.001=4×0.001=0.004
简便算法
=【(-8)×0.125】×【(-12)×1/3】×0.001
=(-1)×(-4)×0.001
=4×0.001
=0.004
乘数里有4个负数 结果为正数 算式可以改为 8×12×0.125÷3×0.001=96×0.125÷3×0.001=12÷3×0.001=4×0.001=0.004
简便算法
=【(-8)×0.125】×【(-12)×1/3】×0.001
=(-1)×(-4)×0.001
=4×0.001
=0.004