I remember doing combinatorics puzzles and number theory exercises in platforms like Brilliant when I had a bit of free time. All the while learning something. But the last time I tried Brilliant I did not enjoy it as much and I can't afford it not anyway.

Does anyone have any recommendations of websites (or webrings), apps or games about or that touch on:

  • combinatorics puzzles
  • modular arithmetic puzzles
  • concepts or exercises of number theory
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[–] 2 points 5 months ago

i like simple math, i love this app. just cruise through; even has tutorials for tricks and stuff.

its called FastMath

https://apps.apple.com/app/id1551025256 Download FastMath for free from the Apple App Store.

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