Pups love the Bark Park, the best dog park around. Only one thing would make it better for everyone--a bench! But a bench isn't in the park budget. How can Lila and her friends raise the money? With a dog wash! They reach 25% of the goal, then 50%, until . . . a sudden shower threatens to make the dog wash a 100% washout!

With engaging stories that connect math to kids' everyday lives, each book in the Teachers' Choice Award-winning Math Matters series focuses on a single concept and reinforces math vocabulary and skills. Bonus activities in the back of each book feature math and reading comprehension questions, and even more free activities online add to the fun! (Math topic: Percentages)