如题所述
46×32+34×492
=46×32+34×(460+32)
=46×32+34×460+34×32
=32×(46+34)+34×460
=32×80+34×460
=64×40+17×23×40
=40×(64+17×23)
=40×455
=18200
=46×32+34×(460+32)
=46×32+34×460+34×32
=32×(46+34)+34×460
=32×80+34×460
=64×40+17×23×40
=40×(64+17×23)
=40×455
=18200
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