99+999+9999+99999
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99+999+9999+9999999+999+9999+9999999+999+9999+99999答案是得11109699+999+9999+99999=99+999+9999+99999+4-4
99+999+9999+99999
99+999+9999+99999
99+999+9999+99999
答案是得111096
99+999+9999+99999=99+999+9999+99999+4-4
=111100-4
=111096
99+999+9999+99999
9999999999+999999999+99999999+99999+9999+999+99+9=?
9+99+999+9999
9×9+99×99+999×999+9999×9999+9999+999+99+9=?等于多少?
9*4/5+99*4/5+999*4/5+9999*4/5+99999*4/5
巧算 (1)5×999+5+99×7+7+3×9+3 = = = = = (2)99999+巧算(1)5×999+5+99×7+7+3×9+3= ====(2)99999+9999+999+99+9+5======
9999×999×99×9+1+11+111+1111=(
9又1/7+99又2/7+999又3/7+9999又4/7+99999又5/7+999999又6/7简算
121×100又1/121简便计算9999+999+99+9简便计算
199900+99+99999×99999简便运算
999×99999÷12+111=?
99+999+9999+99999=
99+999+9999+99999 是多少?
99+999+9999+99999+4
99×99+199 999×999+1999 简算.
9+99+999+9999+9999+99999=?
999×9999+19999 简便计算
(9999+9997+.+9001)-(1+3+.+999)如题