
373-129+29 860-168+159 400/25*75 189-(89+74) 请用简便方法计算要过程哦!
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373-129+29
=373-(129-29)
=373-100
=272
860-168+159
=860-160+159-8
= 700+151
=851
400/25*75
=400*(75/25)
=1200
189-(89+74)
=189-89-74
=26
=373-(129-29)
=373-100
=272
860-168+159
=860-160+159-8
= 700+151
=851
400/25*75
=400*(75/25)
=1200
189-(89+74)
=189-89-74
=26
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