The MathJump, Like A Kangaroo! ebook edition is also available on Amazon. Please review from this link: The MathJump, Like A Kangaroo! ebook edition is now available on Amazon. Please review from this link: https://www.amazon.com/dp/B078QBMNNG. The ebook edition has more questions than are available from the free MathJump! app. If you need even more questions to practice for the Math Kangaroo contest, please contact us at info@homesweetlearning.com.