35×12835×28用简便方法怎么计算
第1个回答 2017-06-11
35×128-35×28
=35×(128-28)
=35×100
=3500本回答被网友采纳
=35×(128-28)
=35×100
=3500本回答被网友采纳
第2个回答 2017-06-11
35×12835×28
=35x(30-2)x12835
=(1050-70)x12835
=980x12835
=(1000-20)x12835
=12835000-256700
=12578300
=35x(30-2)x12835
=(1050-70)x12835
=980x12835
=(1000-20)x12835
=12835000-256700
=12578300