简便计算54321×12345-54322×12344
来源：学生作业帮助网 编辑：六六作业网 时间：2025/02/02 18:39:22
简便计算54321×12345-54322×12344简便计算54321×12345-54322×12344简便计算54321×12345-54322×12344原式=54321×12345-(543
简便计算54321×12345-54322×12344
简便计算54321×12345-54322×12344
简便计算54321×12345-54322×12344
原式=54321×12345-(54321+1)×12344
=54321×12345-54321×12344-12344
=54321×(12345-12344)-12344
=54321-12344
=41977