作业帮 > 数学 > 作业

12345*12348-12346*12346

来源:学生作业帮 编辑:大师作文网作业帮 分类:数学作业 时间:2024/11/10 21:08:13
12345*12348-12346*12346
12345*12348-12346*12346
12345*12348-12346*12346
=12345*12348-12346*(12345+1)
=12345*12348-12346*12345-12346*1
=12345*(12348-12346)-12346
=12345*2-12345-1
=12345-1
=12344