计算:(2+1)(22+1)(24+1)(28+1)=
计算 (1)-9+12-3+8 (2)(-1)+(-)+(+)-(+) (3)(-3)÷2÷(-3)×(-0.75) (4)-16-(1-0.5)××[2-(-3)2]
计算:-12+(π-3.14)0+(-)-2-.
计算: (1); (2).
计算:.
计算 (1) (2)