[lotharbot]

Your kid might enjoy "The Big Numbers Song" from the KidsTV123 youtube channel. After 100, it counts by powers of 10 up to 1 trillion.

Mine is a little older (3 years 4 months) and has graduated to spelling and skip-counting, mostly on the "havefunteaching" youtube channel.

He's also learned which apps seem to respond well to extra taps. There are a few that do, and a few that just require patience.