High Quality Content by WIKIPEDIA articles! The American Invitational Mathematics Examination (AIME) is a 15-question 3-hour test given since 1983 to those who rank in the top 5% (or score at least 100) on the AMC 12 high school mathematics contest (formerly known as the AHSME), and starting in 2010, those who rank in the top 2.5% (or score at least 120) on the AMC 10.