999×99999÷12+111=?
9999999999+999999999+99999999+99999+9999+999+99+9=?
9999×999×99×9+1+11+111+1111=(
111+222+333+444+555+666+777+888++++++++++++++++++++++999=?
(111+999)÷〔56x(七分之三-37.5%)〕
(9+99+999+9999+99999+999999+9999999)×9×99×999×9999×99999÷900
999×999+998×998=?
填写括号.2+3+4=9 5+6+7=18 11+12+13=36 如果a+b+c=999则b=( )
12×(1.5+3分之8)÷3.75=?
999×111+333×667的简便运
求999+333×42+111×15=?的简便计算
999+9999+9999*9999+99999/99999
100-(□÷16+12+4)=47 简便运算