判断下面4道题,()题是运算正确的.A.(198+102)÷-查字典问答网
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  判断下面4道题,()题是运算正确的.A.(198+102)÷25×4=300÷100=3B.25×(40+8)=25×40+8=1000+8=1008C.375-(75+163)=375-75-163=300-163=137D.360-(170+190)÷40=360-360÷40=0÷40=0

  判断下面4道题,()题是运算正确的.

  A.(198+102)÷25×4

  =300÷100

  =3

  B.25×(40+8)

  =25×40+8

  =1000+8

  =1008

  C.375-(75+163)

  =375-75-163

  =300-163

  =137

  D.360-(170+190)÷40

  =360-360÷40

  =0÷40

  =0

1回答
2020-06-08 01:08
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葛娟

  A,(198+102)÷25×4,

  =300÷25×4,

  =12×4,

  =48;

  B,25×(40+8),

  =25×40+25×8

  =1000+200,

  =1200;

  C,375-(75+163),

  =375-75-163,

  =300-163,

  =137;

  D,360-(170+190)÷40

  =360-360÷40

  =360-9,

  =351;

  只有C选项正确;

  故选:C.

2020-06-08 01:11:08

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