这道数学题怎么做,麻烦翻译一下,然后列个算式,谢谢!
Thereare480desksinanexaminationhall.Theteachernumberallthedesksincountingorderstartin...
There are 480 desks in an examination hall.The teacher number all the desksin counting order starting from 1.What is the total number od digits she writes?
展开
推荐律师服务:
若未解决您的问题,请您详细描述您的问题,通过百度律临进行免费专业咨询