88*0.25*9的简便算法,要列式,
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88*0.25*9的简便算法,要列式,
88*0.25*9的简便算法,要列式,
88*0.25*9的简便算法,要列式,
88*0.25*9
=(80+8)×0.25×9
=(10+1)×9
=11×9
=99
88*0.25*9
=11*4*0.25*9
=11*1*9
=99
22*4*0.25*9=22*10*9=198