1) (-3)×3= -9
2) 2.5×2=5
3) (-1/2)×3= -3/2= -1½
1) (-3)³=(-3)×(-3)×(-3)= -27
2) 2.5²=6.25
3) (-1/2)³ = (-1/2)×(-1/2)×(-1/2)= -1/8
