下列各题如何用简便算法计算(小学五年级)4.06X55X273.572÷0.47X1.259.52÷0.28÷0.174.72X0.32÷0.16
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![下列各题如何用简便算法计算(小学五年级)4.06X55X273.572÷0.47X1.259.52÷0.28÷0.174.72X0.32÷0.16](/uploads/image/z/1009421-53-1.jpg?t=%E4%B8%8B%E5%88%97%E5%90%84%E9%A2%98%E5%A6%82%E4%BD%95%E7%94%A8%E7%AE%80%E4%BE%BF%E7%AE%97%E6%B3%95%E8%AE%A1%E7%AE%97%EF%BC%88%E5%B0%8F%E5%AD%A6%E4%BA%94%E5%B9%B4%E7%BA%A7%EF%BC%894.06X55X273.572%C3%B70.47X1.259.52%C3%B70.28%C3%B70.174.72X0.32%C3%B70.16)
下列各题如何用简便算法计算(小学五年级)4.06X55X273.572÷0.47X1.259.52÷0.28÷0.174.72X0.32÷0.16
下列各题如何用简便算法计算(小学五年级)
4.06X55X27
3.572÷0.47X1.25
9.52÷0.28÷0.17
4.72X0.32÷0.16
下列各题如何用简便算法计算(小学五年级)4.06X55X273.572÷0.47X1.259.52÷0.28÷0.174.72X0.32÷0.16
4.06X55X27
=20.3×(11×27)
=20.3×297
=20.3×(300-3)
=20.3×300-20.3×3
=6090-60.9
=6029.1
3.572÷0.47X1.25
=0.893÷0.47×(1.25×4)
=1.9×5
=9.5
9.52÷0.28÷0.17
=95200÷28÷17
=3400×17
=57800
4.72X0.32÷0.16
=4.72×(0.32÷0.16)
=4.72×2
=9.44
怎样用简便算法计算下列各题:12÷1.25、94÷0.25÷0.4,请说明基本原理=(12×8__)÷(1.25×8__) =(96)÷(10) =(9.6) 94÷0
①4.06X55X.27
=20.3×(11×27)
=20.3×297
=20.3×(300-3)
=20.3×300-20.3×3
=6090-60.9
=6029.1
②3.572÷0.47X1.25
=0.893÷0.47×(1.25×4)
=1.9×5
=9.5
③9.52÷0.28÷0.17
全部展开
①4.06X55X.27
=20.3×(11×27)
=20.3×297
=20.3×(300-3)
=20.3×300-20.3×3
=6090-60.9
=6029.1
②3.572÷0.47X1.25
=0.893÷0.47×(1.25×4)
=1.9×5
=9.5
③9.52÷0.28÷0.17
=95200÷28÷17
=3400×17
=57800
④4.72X0.32÷0.16
=4.72×(0.32÷0.16)
=4.72×2
=9.44
收起
6029.1 9.5 57800 9.44
①4.06X55X.27
=20.3×(11×27)
=20.3×297
=20.3×(300-3)
=20.3×300-20.3×3
=6090-60.9
=6029.1
②3.572÷0.47X1.25
=0.893÷0.47×(1.25×4)
=1.9×5
=9.5
③9.52÷0.28÷0.17
全部展开
①4.06X55X.27
=20.3×(11×27)
=20.3×297
=20.3×(300-3)
=20.3×300-20.3×3
=6090-60.9
=6029.1
②3.572÷0.47X1.25
=0.893÷0.47×(1.25×4)
=1.9×5
=9.5
③9.52÷0.28÷0.17
=95200÷28÷17
=3400×17
=57800
④4.72X0.32÷0.16
=4.72×(0.32÷0.16)
=4.72×2
=9.44
拆
收起