脱式计算:654321*123456-654322*123455
来源:学生作业帮助网 编辑:作业帮 时间:2024/07/27 11:09:03
![脱式计算:654321*123456-654322*123455](/uploads/image/z/103828-4-8.jpg?t=%E8%84%B1%E5%BC%8F%E8%AE%A1%E7%AE%97%EF%BC%9A654321%2A123456-654322%2A123455)
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脱式计算:654321*123456-654322*123455
脱式计算:654321*123456-654322*123455
脱式计算:654321*123456-654322*123455
原式=654321×123455+654321-654322×123455
=(654321-654322)×123455+654321
=654321-123455
=530866
原式=654321*(123455+1)-(654321+1)*123455
=654321*123455+654321-654321*123455-123455
=654321-123455
=530866