Following are some URL for some good sites of math problems...

http://web.mit.edu/hmmt/www/

http://www.artofproblemsolving.com/

http://mathschallenge.net/

projecteuler.net/ (Algorithm Based Problems)

Do not forget to mention brilliant.org - it's now one of them...

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TopNewestprojecteuler is not math I doubt one can solve more than 10/400 problems with pure math – Harshit Kapur · 4 years, 7 months ago

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– Kristin Dover · 4 years, 7 months ago

No it isn't pure math, but I need to get better at my algorithm based problem solving.Log in to reply

You can also access the HMMT problems at the easier-to-remember hmmt.org :) – Eli Ross · 4 years, 7 months ago

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AOPS is fun – Tim Ye · 4 years, 7 months ago

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Thanks for sharing. I had never heard of projecteuler. – Kristin Dover · 4 years, 7 months ago

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