Hi, Gregg.  We are excited to hear that your daughter enjoys the drag-to-arrange numbers.  Here is an early math exercise (Compare 2-digit numbers 2) that has several types of questions, including a drag-to-arrange numbers by size task: https://www.khanacademy.org/math/early-math/cc-early-math-place-value-topic/cc-early-math-two-digit-compare/e/comparing-two-digit-numbers-1.  

We hope this is the one she enjoys!

Best,

Lindsay and the Khan Academy team