99999999x77777777=?

来源：学生作业帮编辑：神马作文网作业帮分类：数学作业时间：2024/11/11 05:59:21

99999999x77777777=?
在此,小妹先谢过发信息的个位了!

9*7 =70-7 =63
99*77 =7700-77 =7623
999*777 =777000-777 =776223
9999*7777 =77770000-7777 =77762223
99999*77777 =7777700000-77777 =7777622223
999999*777777 =777777000000-777777 =777776222223
9999999*7777777 =77777770000000-7777777 =77777762222223
99999999*77777777 =7777777700000000-77777777 =7777777622222223
想必规律很明显了吧?

99999999/55555= 99999999 98989898×99999999÷1010101÷11111111=? 9+99+999+9999+99999+999999+9999999+99999999=? 9+99+999+9999+99999+999999+9999999+99999999=( ) 用极限定义证lim0.99999999……9(n个)=1 9/10+99/100+999/1000+.+99999999/100000000 =1-1/10+1-1/100+.+ 98989898*99999999/10101010/11111111 李嘉诚捐款多少99999999 简便计算下题1.9+99+999+……+99999999=?2.0.6*1.6+0.6*26.4+0.6*2=?3.19 123+123+123+123+99999999 鲁迅为什么这么瘦99999999