如题所述
第1个回答 2020-03-11
简便计算过程方法如下
解:57x87 +25x87+ 82x13
=(57+25)x87+82x13
=82x87+82x13
=82x(87+13)
=82x100
=8200本回答被网友采纳
解:57x87 +25x87+ 82x13
=(57+25)x87+82x13
=82x87+82x13
=82x(87+13)
=82x100
=8200本回答被网友采纳
第2个回答 2020-03-11
57x87 +25x87+ 82x13
=(57+25)x87+82x13
=82x87+82x13
=82x(87+13)
=82x100
=8200
=(57+25)x87+82x13
=82x87+82x13
=82x(87+13)
=82x100
=8200