计算:(1)(2).
计算下列各题 (1)-27-(-12); (2); (3)(-12)÷4×(-6)÷2; (4).
计算: (1); (2); (3); (4).
计算: (1)-4÷4×=_____; (2)-2÷1×(-4)=______.
计算: (1)(-8)×5-40=_____; (2)(-1.2)÷(-)-(-2)=______.