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by mlyle 307 days ago
> but it beats paying $50 per month for the service OP's post links to.

I used this with my kids.

The $50 a month to make it easy is worth it for many people, and is downright cheap compared to many approaches.

Now, there's other options-- Khan is also great and free. But always having a bite-sized chunk to do, immediate feedback, spaced repetition, etc-- it's pretty good.