University of Chicago Practice Contests -- practice01
Problem A - Arithmetically Challenged
Solutions
Source: Problem A from East Central North America 2009 [Scoreboard]
Problem B - Phil In the Blanks
No solutions available
Source: Problem B from South Central North America 2009 [Scoreboard]
Problem C - Shuffling
Solutions
Source: Problem G from Rocky Mountain North America 2009 [Scoreboard]
Problem E - YO!
No solutions available
Source: Problem D from South Central North America 2009 [Scoreboard]
Problem G - I'm Attacking the Darkness!
No solutions available
Source: Problem H from South Central North America 2009 [Scoreboard]
Problem H - Here's a Product Which Will Make You Tensor
Solutions
Source: Problem F from East Central North America 2009 [Scoreboard]
Problem I - Honeycomb, Honeycomb, Me Want Honeycomb!
No solutions available
Source: Problem C from South Central North America 2009 [Scoreboard]
Problem J - Trip the Lights Fantastic
Solutions
Source: Problem G from East Central North America 2009 [Scoreboard]