123×444+111×50的简便计算
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2018-01-12
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123×444+111×50的简便计算
解:
采用分配律,
原式=123x4X111+111x50
=492x111+111x50
=111x(492+50)
=111x542
=(100+10+1)x542
=100x542+10X542+1x542
=54200+5420+542
=59620+542
=60162
解:
采用分配律,
原式=123x4X111+111x50
=492x111+111x50
=111x(492+50)
=111x542
=(100+10+1)x542
=100x542+10X542+1x542
=54200+5420+542
=59620+542
=60162
2018-01-12
展开全部
123×444+111×50的简便计算
=123×3×111+111×50
=369×111+111×50
=111×(369+50)
=111×419
=46509
=123×3×111+111×50
=369×111+111×50
=111×(369+50)
=111×419
=46509
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