Not directly math problem sums related 
But I believe every opportunity for my kids to learn is related to gaining interest in learning math.

If your child is losing interest in learning maths, probably you can ask yourself what kind of activities you can plan for your child so he can start to like learning.

Hope it helps.

Here’s a
Solar system done by my kids within 2 days.
🚀🌟🌍🌞☄️🌖