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第1个回答 2020-04-25
123×25+124×24
=123×25+(124×24+124)-124
=123×25+124×25-124
=(123+124)×25-124
=247×25-124
=(248-1)×25-124
=248×25-1×25-124
=62×(4×25)-(25+124)
=62×100-149
=6200-(200-51)
=6200-200+51
=6000+51
=6051
=123×25+(124×24+124)-124
=123×25+124×25-124
=(123+124)×25-124
=247×25-124
=(248-1)×25-124
=248×25-1×25-124
=62×(4×25)-(25+124)
=62×100-149
=6200-(200-51)
=6200-200+51
=6000+51
=6051