You may be interested in activities offer practice for studetns to become fluent in making change and using money. Please check a few to see which sites meet the needs of your students. Your students can build and master money skills by using Web-based games and flash animations.
For At-Grade level Students
Discovering Coin Values
https://www.cpalms.org/Public/PreviewResourceLesson/Preview/72902
Money worksheets
http://www.teach-nology.com/worksheets/math/money/
Adding Dollars, Dimes, and Pennies
www.aaamath.com/B/add211x5.htm
Buy it with the little farmer
http://www.lizardpoint.com/fun/java/buyit/BuyIt.html
Counting Change
www.quia.com/fc/4918.html
For Above- Grade level Students
Practical Money skills
http://www.practicalmoneyskills.com/games/ed_bank/index.html
Add Money
http://www.aaamath.com/B/mny45ax2.htm
Coins for Change
http://www.aaamath.com/mny313-coins-for-change.html
References (Differentiating Instruction with Technology in K-5 Classrooms)