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小学五年级数学上册计算 专项练习之脱式计算 班级_,姓名 _ 脱式计算下面各题 (注:先看运算顺序,再考虑能否简便计算) 39.057.1-2.1 7.32(4.320.64) 38.834.42.4 39.78 4.50.4 14.4+15.61.2 8.8+7.21.6 9.7283.2+6.8 (30.6+1.08)0.9 (2.65+2.77)( 1.98-0.98)3.791.6+6.391.6 0.45120.2 6.22.12.12.8 2.81.430.57 106.068.5 60.251.8 1443.627.2 0.873.16+4.64 6.80.750.5 13.750.1252.75 53+23.47.2 2.8810.430.243.5 28-(3.4+1.252.4) (31.8+3.24)5 31.54(6+3) 0.64257.8+2.2 22.5+2.52 19464.81.80.9 36.724.259.9 51807056 242.42.50.8 3.416(0.01635)4.51.8 0.9