AAA Math
Aaa Math: Adding Dimes, Nickels, and Pennies
Add different combinations of pennies, nickels, and dimes with this online game. You can see the percent of correct answers you have, as well as running totals of correct and incorrect answers.
National Council of Teachers of Mathematics
Nctm: Figure This: How Can You Use Old Stamps?
Test your number sense and problem-solving aptitude with this math challenge using postage stamps with different values. This one-page activity from the NCTM Math Challenge for Families series focuses developing skills that can be used...