用递等式计算:2.6×(2.139÷9.3×6.2)16.7-查字典问答网
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  用递等式计算:2.6×(2.139÷9.3×6.2)16.75-(9.1-1.92)+1.622.6×1.9÷2.6×1.94.264÷(0.16×20.5)

  用递等式计算:2.6×(2.139÷9.3×6.2)16.75-(9.1-1.92)+1.622.6×1.9÷2.6×1.94.264÷(0.16×20.5)

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2020-04-18 12:13
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陈作贤

  (1)2.6×(2.139÷9.3×6.2)

  =2.6×(0.23×6.2)

  =2.6×1.426

  =3.7076;

  (2)16.75-(9.1-1.92)+1.62

  =16.75-7.18+1.62

  =9.57+1.62

  =11.19;

  (3)2.6×1.9÷2.6×1.9

  =2.6÷2.6×1.9×1.9

  =1×1.9×1.9

  =3.61;

  (4)4.264÷(0.16×20.5)

  =4.264÷3.28

  =1.3

2020-04-18 12:18:00

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