With a focus on STEM education in schools, there are tons of apps and websites that promise to improve kids' math skills. But it can be hard to find the best tools out there that really help build skills and a love for math. Kids can practice math at all levels with this terrific app. Young kids can develop early skills such as number sense, counting, basic addition, and word problems. Math with Royce can help children develop important skills that will be needed and help further their math development.