This brings back great memories of a game I played as a kid called 24. Not so much modern, just cards with four numbers that you would add, subtract, multiply and divide to get the center number. Then you would slap the card and explain. It did something to my brain as even the thought of those cards makes me smile.

Hey thanks for this recommendation I'm going to check it out.

Have you tried Dragon Box? I've had my son doing that for awhile. Parent reporting is lacking.

Also briefly did Khan Academy Kids but he's so far ahead that seems pretty useless now.

The music in that game is sublime