(3*(-2))*5=-30
(-9*4)*(-2,5)=90
(13*(-5))*20=-1300
(-9*15)*(-2)=270
(-8*(-12))*5=480
(3*(-25))*2=-150
(3*(-2))*5=-30
(-9*4)*(-2,5)=90
(13*(-5))*20=-1300
(-9*15)*(-2)=270
(-8*(-12))*5=480
(3*(-25))*2=-150