来自陈佳豫的问题
【()()()X()2()-----------()()()()()()()()8(0------------()()9()2()】
()()()
X()2()
-----------
()()()
()()()()
()8(0
------------
()()9()2()
1回答
2020-03-08 18:10
【()()()X()2()-----------()()()()()()()()8(0------------()()9()2()】
()()()
X()2()
-----------
()()()
()()()()
()8(0
------------
()()9()2()
写工整些,错开了,有个括号还只有半边
如果猜得没错应该是620*321=199020
验算一下,对了要记得采纳哦~