Honestly it is expensive but a life-time brilliant.org subscription is $599.99 US Dollars. It’s a super great service I bought it myself and find it fun to go

Honestly it is expensive but a life-time brilliant.org subscription is $599.99 US Dollars. It’s a super great service I bought it myself and find it fun to go through some of the courses on my free time. The logic courses are fun. The basic math courses do some cool explanations of divisibility rules. It’s quite a bit different than Khan Academy as it’s a lot less plug and chug, but instead it focuses on teaching small lessons and letting you use intuition and problem solving skills which to me are the fun parts of math. Besides Math it also has Computer Science, Physics, Probability, and other Sciences. I would recommend maybe trying it for one month maybe if they have a free trial or something and then decide if you want to sink the $599.99 into it. The month by month subscriptions are quite a bit cheaper, but if you want to use it long term it may be worth it to buy the lifetime subscription.