Hey!

Wanted to share this series of Counting and Probability Educational Contests — that can serve as a fun way to practice counting & probability from the AMC 8 level all the way through the hard AIME level — while competing live with some of the best Mathletes in the world!

Problems are mostly AMC/AIME problems with some others sprinkled in — and are chosen to optimize for educational value!

We recommend that you pull out your nearest Counting and Probability book or read a handout on the topic before you dive in to this test so that you are maximally prepared :)

Counting Educational Contest
Venn Diagrams Educational Contest
Handshakes Educational Contest
Casework Educational Contest
Combinations Educational Contest
Paths On A Grid Educational Contest
Complementary Counting Educational Contest
Stars and Bars Educational Contest
Pascal's Triangle Educational Contest

Harder
Linearity of Expectation Educational Contest
Generating Functions Educational Contest
Vandermondes Educational Contest
Burnsides Educational Contest
States Educational Contest

Bonus (Non Counting and Probability — not AMC/AIME questions — and different format, with full solutions)
Power of a Point Educational Contest (Hard)
Power of a Point Educational Contest (Easier)
System of Equations Educational Contest (Hard)
System of Equations Educational Contest (Easier)