Mr. Nussbaum: Cash Out
Do you have trouble figuring out how to make change? This game gives you the chance to practice your skills while acting as a cashier in a store. Three levels of difficulty allow you to push yourself and increase your abilities. Read the short word problem before selecting the change you should return. This game is timed, and you can make it even more difficult by not having the change amount shown. That way you practice your subtraction skills as well as your change selection. The instructions are clear and the products for sale are deliciously outlandish.
http://www.mrnussbaum.com/cashout/index.html
Tagged making change, Site of the Day, subtraction