28*55-28+28*46简算
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![28*55-28+28*46简算](/uploads/image/z/360411-51-1.jpg?t=28%2A55-28%2B28%2A46%E7%AE%80%E7%AE%97)
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28*55-28+28*46简算
28*55-28+28*46简算
28*55-28+28*46简算
28*55-28+28*46
=28*55-28*1+28*46
=28*(55-1+46)
=28*100
=2800
你好,
原式=28*(55-1+46)
=28(55+45)
=28*100
=2800
28*(55-1+46)=28*100=2800
28*55-28+28*46
=28*(55-1+46)
=28*100
=2800
28(55-1+46)=28×100=2800