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计算:6789×67886788-6788×67896789

来源:学生作业帮 编辑:作业帮 分类:数学作业 时间:2024/04/26 19:16:26
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