(1) (2) -1-〔1-(1-0.5×)〕×6 (4) (5)(-+)×(-36) (6)
计算:
计算:(每小题4分,本题共16分)(1) (2)(3) (4)
计算:(1)-7-11-9+5 (2)×2+÷4
计算题.(每题4分,共8分)(1)计算:-()-2+(-1)0;(2) + +.
计算:(1)(+6.2)―(+4.6)―(―3.6)―(―2.8)(2)1.6×(―)×(―2.5)×(―)(3)(―+―)×(―4.8)(4)(―)2+(―1)101―0.25+()2÷(―)3÷(5)(―2)3÷×(―)2+―5×(―)