Sheet # 69/Exponents
Name: _____________________ Date_____________
Show your work.
1) The number of books in a library doubles every month. If there are 1000 books in the library, how many books were there in the library three months ago?
2) Tom's saving doubles every week. If he has $64, how much money did he have 4 weeks ago?
3) Jan's expenses doubles every month. If she spends $256 this month, how much did she spend eight months ago?
4) The number of employees in a fast growing company doubles every three months. If there are presently 4000 employees in the company, how many employees were there a year ago?
Answers for Sheet # 69
1) 125 books
2) $4
3) $1
4) 250