987654321×12345-987654322×12344
987654321×12345-987654322×12344
987654321×12345-987654322×12344的简便运算是什么
12345²12344×12346=?
12345²-12344×123456=
12345*54321=12344*54322
12345²-12344*12346=
123456789乘987654321和123456788乘987654322的差是
123456789*987654321-123456788*987654322=多少简便计算脱式
12345的2次方-12344×12346=
简便计算54321×12345-54322×12344
计算:12345432112345×12345−12346×12344
12345的平方-12344×12346-1