This year’s AIME I was held on February 6th, 2025. Middle school and high school students who qualified through the AMC 10 and AMC 12 were able to compete. Congrats to everyone who participated!
The problems can now be discussed! See below for the answer key for the 2025 AIME I questions as well as the concepts tested on each problem. All answers for the AIME are in the form of 3-digit integers.
1
070
number theory: number bases and factors
2
588
geometry: areas and area methods and similar triangles
3
016
combinatorics: counting, cases, and arrangements
4
117
algebra: lattice points, quadratic formula, and multiples
5
279
combinatorics and number theory: divisibility rules, sums, and cases
6
504
geometry: isosceles trapezoids, cyclic quadrilaterals, tangents, and areas
7
821
combinatorics: counting, cases and careful thinking, and probability
8
077
algebra: complex numbers and geometry, moduli and distances, and circles
9
062
geometry and algebra: quadratics and conics, symmetry, and transformations
10
081
combinatorics: counting, cases and careful thinking, and Sudoku
11
259
algebra: piecewise functions, quadratics, Vieta’s, and graphing
12
510
geometry: 3D surfaces, equations and factoring, and areas
13
204
combinatorics: expected value, probability, intersecting lines and regions, and careful thinking
14
060
geometry: inequalities, cyclic quadrilaterals, and the Fermat point
15
735
number theory: modular arithmetic, casework, and lifting the exponent
The AIME I exam is administered by the Mathematical Association of America (MAA). Students are invited to take the AIME based on their scores for the AMC 10 and 12 exams. For general information about the AMC 10 and 12, click here.
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