如题所述
46×129-30×46+46
=46×129-46×30+46×1
=46×(129-30+1)
=46×100
=4600
=46×129-46×30+46×1
=46×(129-30+1)
=46×100
=4600
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第1个回答 2020-04-26
=46×(129+1-30)
=46×(130-30)
=46×100
=4600
=46×(130-30)
=46×100
=4600