计算:9999*9999+19999=__=__=__=__
来源:学生作业帮助网 编辑:作业帮 时间:2024/06/24 00:17:03
![计算:9999*9999+19999=__=__=__=__](/uploads/image/z/26934-6-4.jpg?t=%E8%AE%A1%E7%AE%97%3A9999%2A9999%2B19999%3D__%3D__%3D__%3D__)
计算:9999*9999+19999=__=__=__=__
计算:9999*9999+19999=__=__=__=__
计算:9999*9999+19999=__=__=__=__
9999*9999+19999=9999*9999+19998+1=9999*9999+9999*2+1=(9999+1)^2=100000000(10^8)
9999^2+2*9999*1+1^2=(9999+1)^2=10^8