0-2的三次方÷(-4)的三次方-1/8
=8/64-1/8
=1/8-1/8=0
(-2)的三次方×0.5-(-1.6)的二次方÷(-2)的二次方
=-8*0.5-2.56/4
=-4-0.64
=-4.64
-3/2×[(-2/3)的二次方-2]
=-3/2*[4/9-2]
=-2/3+3
=7/3
[(-3)的二次方-(-5)的二次方]÷(-2)
=[9-25]/(-2)
=16/2
=8
16÷(-2)的三次方-(-1/8)×(-4)
=16/(-8)-1/8*4
=-2-1/2
=-5/2