(1)375+450×25 (2)9.07-22.78÷3.4 (3)1.25×14×0.8 (4)(×3.2+0.8)× (5)5.65×+÷ (6)94×1999-93×2000
计算下列算式: (1)(+- )×(-60);(2)-22-(1- ×0.2)÷(-2)3
计算
(1) (2)(+1—2.75)×24+ (—1)2014
(本题12分)计算: (1) (2)
计算下列各题 (1) (2) (3) (4)