下面各题怎样算简便就怎样算13.65÷0.25÷628.98-查字典问答网
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  下面各题怎样算简便就怎样算13.65÷0.25÷628.98÷6.3-3.154.8-4.8÷1.686.4÷0.24+401.4÷3.5×0.44.5×1.2-3.15÷15.

  下面各题怎样算简便就怎样算

  13.65÷0.25÷628.98÷6.3-3.154.8-4.8÷1.686.4÷0.24+401.4÷3.5×0.44.5×1.2-3.15÷15.

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2020-07-1507:36
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  (1)13.65÷0.25÷6

  =13.65÷(0.25×6)

  =13.65÷1.5

  =9.1

  (2)28.98÷6.3-3.15

  =4.6-3.15

  =1.45

  (3)4.8-4.8÷1.6

  =4.8-3

  =1.8

  (4)86.4÷0.24+40

  =360+40

  =400

  (5)1.4÷3.5×0.4

  =0.4×0.4

  =0.16

  (6)4.5×1.2-3.15÷15

  =5.4-0.21

  =5.19

2020-07-15 07:39:22
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