如题所述
第1个回答 2020-03-31
简便计算
680x35-48x350
=68x350-48x350
=（68-48）x350
=20x350
=7000
680x35-48x350
=68x350-48x350
=（68-48）x350
=20x350
=7000
第2个回答 2020-03-31
680×35-48×350
=680×35-480×35
=(680-480)×35
=200×35
=7000本回答被网友采纳
=680×35-480×35
=(680-480)×35
=200×35
=7000本回答被网友采纳
