Discover Math Matters With over 15 million books sold worldwide, this award-winning series of easy-to-read books will help young readers ages 5-8 approach math with enthusiasm. Great for fans of MathStart or Step into Reading Math. Deena has a problem. Her mom's birthday is coming, but she has no money to buy a present How does a "lucky" penny help Deena? With engaging stories that connect math to kids' everyday lives, each...