有理数-40-28-(-19)+(-24)-(-32)(写出过程)

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有理数-40-28-(-19)+(-24)-(-32)(写出过程)

原式=-40-28+19-24+32
=19+32-(40+28+24)
=51-92
=-41

-40-28-(-19)+(-24)-(-32)=-40-28+19-24+32=-41

-40-28-(-19)+(-24)-(-32)
=-68-24+19+32
=-92+51
=-41

=-40-28+19-24+32
=19+32-(40+28+24)
=51-92
=-41