比较大小:______.
(+32)×(-60.6)×0×(-9)=______
-0.4×0.2=_______;
(-5)×(3)=_______;
(-3)×(-0.3)=_______;
确定下列各个积的符号,填在空格内: (1)(-7.4)×(-3.2)_______; (2)(-2)×(-2)×2×(-2)________; (3)(-)×(-)×(-)×(-)