计算:6789×67886788-6788×67896789

来源:学生作业学帮网 编辑:学帮网 时间:2024/06/11 12:44:04

计算:6789×67886788-6788×67896789

=(6788+1)*67886788-6788*(67886788+10001)
=6788*67886788+67886788-6788*67886788-10001*6788
=67886788-10001*6788
=67886788-(10000*6788+6788)
=67886788-(67880000+6788)
=67886788-67886788
=0