Originally Posted by
phillyfan09 I have solved a problem, but am not so sure if I have the right answer. If anyone can help check it for me and correct what is wrong, if anything, I would greatly appreciate it!
PROBLEM:
Jen has to number the 396 pages in her biology notebook. How many digits will she have to write?
I got the answer 1075 digits by:
pages 1-9 = 9 digits
10-99 = 178 digits (99-10 = 89 #s. 89 x 2 digits = 178)
396-100 = 888 digits (396-100 = 296 #s x 3 digits = 888)
9
178
+ 888
_______
1075 digits on 396 pages
Again, if anyone can help go over this it would be a great help!
Thank you