题目内容
脱式计算.
(1)54.7-45.3÷15
(2)(2.6-2.6÷1.3)×3.1
(3)0.25×(6.05-3.25×1.8)
(4)7.5÷(1÷0.4)×0.4
(5)10.8÷[(5.28-1.68)×0.3]
(6)[2.7+(1-0.4)×8]÷0.6