99999+9998+997+96+10=?
-999 * -998 * -997*.*997*998*999=?
计算(99999+99999+99999+99999+99999)÷9=______.
98+998+9998+99998=?
9998*998+98+8=
下面的计算题要怎么简便运算?9999+9998+9997+9996 99999×26+33333×22
999+997+995+993=( )
1+2-3+...+9998-9999+10000=?
巧算:8+98+998+9998+9999=?
如果9998/9999*10000=9998/9999+x,则x等于()
9+99+999+9999+99999 = =
10+9999+9998+9997+9996递等式(巧算
9+99+999+9999+99999=?