You could reply with something like this:
"Great insights! I completely agree that math-based games can make learning more engaging for kids. It's amazing how tools like Sumdog and Math IXL can turn practice into fun challenges. Have you had any personal experiences using these websites? I’d love to hear more about how they helped you or your classmates!"
This response acknowledges her points, encourages further discussion, and invites her to share more of her perspective.