654321123456 654322123455654321×123456-654322×123455

分类: 作业答案 • 2021-12-19 15:54:20

问题描述：

654321*123456 654322*123455
654321×123456-654322×123455

答

654321×（123455+1）-（654321+1）×123455
=654321×123455+654321×1-654321×123455-123455×1
=654321-123455
=530866

654321*123456 654322*123455654321×123456-654322×123455