1台织布机3小时织布60米.同样的织布机5台8小时织布多少米?
简便计算下面各式:×﹣÷ (111×66﹣185×8)÷37=
计算下面各题,能简算的要简算.102×4.5 7.8×6.9+2.2×6.9 5.6×1.25.
70.5×3.7+63×7.05=
8×(125+25)×4.
用你喜欢的方法计算(1)3.25÷0.25÷0.4 (2)8.3×2.6﹣8.3×1.6.