Nice job, but it's definitely lacking a reward mechanism to get this to qualify even loosely as "edutainment". Maybe add a particle emitter glitter gun or some kind of flashy CSS animation. You'd be surprised at how even the smallest things can help keep a child engaged.
About a decade ago my little brother was struggling with the multiplication table so I built an education game based off the magic carpet escape sequence in the Sega Genesis game for Aladdin.
https://specularrealms.com/alad
After a few weeks, he had those tables down cold!