(1)99又8/9*(-13)
=(100-1/9)×(-13)
=-1300+13/9
=-1298又5/9
(2)(-125)*(-25)*(-5*(-2)*(-4)*(-8)
=125×8×25×4×5×2
=1000×100×10
=1000000
(1)99又8/9*(-13)
=(100-1/9)×(-13)
=-1300+13/9
=-1298又5/9
(2)(-125)*(-25)*(-5*(-2)*(-4)*(-8)
=125×8×25×4×5×2
=1000×100×10
=1000000