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:2024/11/12 06:59:44
六年级简算题654321*123456-654322*123455
654321×123456-654322×123455
=654321×(1+123455)-(654321+1)×123455
=654321×1+654321×123455-654321×123455-1×123455
=(654321×123455-654321×123455)+(654321×1-1×123455)
=0+530866
=530866