This book is for students who are preparing for middle school math competitions such as AMC 8 and MathCounts. It contains four AMC 8 practice exams with new problems not used in any past competitions and with insightful solutions.The authors of the book, AlphaStar Math Development Team, is a group of expert students and alumni of AlphaStar Academy, an education company located in Bay Area, California offering online courses for contest preparation in Math, Computer Science, and Physics. The authors themselves participated and got excellent results in Math competitions and Olympiads. In particular, in AMC 8, the authors had a combined number of 6 Perfect scores and 21 Distinguished Honor Roll Awards which is given to only top 1% of participants. Dr. Ali Gurel, AlphaStar Academy co-founder and Math Director, led the team and also did the editing.