>
数学
>
9+99+999+9999+99999+999999+9999999+99999999=( )
人气:416 ℃ 时间:2019-12-11 02:00:45
解答
9+99+999+9999+99999+999999+9999999+99999999+999999999
=10-1+100-1+1000-1+10000-1+……+1000000000-1
=1111111101
推荐
9×9= 99×99= 999×999= 9999×9999= 99999×99999= 我能直接想出: 999999999×999999999=
9+99+999+9999+99999+999999=_.
(9+99+999+9999+99999+999999+9999999)×9×99×999×9999×99999÷9000000=?
9+99+999+9999+99999+999999+9999999+99999999+999999999+9999999999等于多少,有简便方法吗?
9+99+999+9999+99999+999999=_.
They not have classes on Saturday orSunday.这句话对吗?
几个同学开会,坐三条腿的凳子和四条腿的凳子,已知人腿加凳子的腿共38条,问凳子和人各几
The patient ____ by the doctor is Li Ming's mother.
猜你喜欢
江上往来人的诗名是什么
《送孟浩然之广陵》题目中用的是广陵,为什么诗中用扬州
不通分,这道题能简单计算吗1/2+3/4+7/8+15/16+31/32+63/64
翻译:Petroleum was not then used to make gasoline or heating oil.?
甲乙两数的和是43.648,如果把甲数的小数点向左移动一位数就等于乙数,甲乙二数各是多少?
A full translation and study of the .
还记得大明湖畔的XXX是什么意思
14乘以42的递等式计算方法
© 2025 79432.Com All Rights Reserved.
电脑版
|
手机版