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Math Competitions

AMC

The AMC 8, 10 and 12 are 25-question, no-calculator competitions spanning number theory, combinatorics, algebra and geometry. They are the first step toward AIME and USAMO.

Difficulty

Elite

Format

AMC 8, 10 (A/B) and 12 (A/B): no calculator, MCQ (AMC 10/12) or integer answer 0–25 (AMC 8)

Duration

40 minutes (AMC 8) · 75 minutes (AMC 10/12)

Syllabus

What AMC covers

AMC 8

  • Arithmetic, estimation and ratio/proportion
  • Elementary geometry: the Pythagorean theorem, area and perimeter
  • Basic number theory and counting
  • Reading graphs, tables and spatial visualization

AMC 10

  • Elementary algebra: linear and quadratic equations, systems, sequences
  • Geometry: triangles, circles, polygons, area/volume and coordinate geometry
  • Elementary number theory: divisibility, primes, modular arithmetic basics, GCD/LCM
  • Elementary combinatorics and probability (no trigonometry, logarithms or complex numbers)

AMC 12 (adds to AMC 10)

  • Trigonometry: the six trig functions, unit circle, law of sines/cosines
  • Complex numbers and the complex plane
  • Logarithms and exponential functions
  • Polynomial theory, including Vieta's formulas, and deeper combinatorics/probability

Study Notes

AMC notes from our tutors

AMC

4 sections · 0 notes

View course outline
Section 1A - AMC 8 Locked
  • Arithmetic Ratios and Percentages · Locked, notes not yet available
  • Divisibility Primes and Remainders · Locked, notes not yet available
  • Counting and Elementary Probability · Locked, notes not yet available
  • Angles Area and the Pythagorean Theorem · Locked, notes not yet available
  • Patterns and Logical Problem Solving · Locked, notes not yet available
  • AMC 8 Review · Locked, notes not yet available
Section 2A - AMC 10 Locked
  • Algebraic Identities and Equations · Locked, notes not yet available
  • Functions Sequences and Quadratics · Locked, notes not yet available
  • Number Theory and Modular Arithmetic · Locked, notes not yet available
  • Counting with Cases and Complements · Locked, notes not yet available
  • Probability and Expected Counts · Locked, notes not yet available
  • AMC 10 Algebra and Counting Review · Locked, notes not yet available
Section 2B - AMC 10 Locked
  • Triangles Similarity and Area · Locked, notes not yet available
  • Circles and Polygons · Locked, notes not yet available
  • Coordinate Geometry · Locked, notes not yet available
  • Geometry Problem Solving Review · Locked, notes not yet available
Section 3A - AMC 12 Locked
  • Trigonometric Identities and Equations · Locked, notes not yet available
  • Complex Numbers · Locked, notes not yet available
  • Logarithms and Exponentials · Locked, notes not yet available
  • Polynomial Roots and Vieta Relations · Locked, notes not yet available
  • Advanced Counting and Probability · Locked, notes not yet available
  • AMC 12 Review · Locked, notes not yet available

Exam Pattern

How AMC is assessed

AMC 8

25 questions40 minutes

Integer answers from 0–25, no calculator, 1 point per correct answer, max score 25.

AMC 10 / AMC 12

25 questions75 minutes

Multiple choice with 5 options, no calculator. 6 points per correct answer, 1.5 points per blank, 0 for incorrect; max score 150.

Qualification pathway

Top ~2.5% of AMC 10 and top ~5% of AMC 12 scorers are invited to the AIME; exact cutoffs are announced fresh each year.

Required Materials

What you'll need

Official past AMC papers

Freely published by the MAA with full solutions, the single best source of realistic practice.

Art of Problem Solving (AoPS) texts

Introduction to Algebra, Geometry, Number Theory and Counting & Probability are the de facto standard prep books.

AoPS Alcumus

A free adaptive practice platform that targets exactly the topics an AMC student is weakest on.

Try It Yourself

Sample questions, solved step by step

Scroll into view to watch each solution build itself, one step at a time, exactly how our tutors walk students through it.

1

Sample question

How many positive integers less than 1000 are divisible by neither 5 nor 7?

Animated solution

1

Count multiples of 5

⌊999/5⌋ = 199

2

Count multiples of 7

⌊999/7⌋ = 142

3

Count multiples of both (35), to avoid double-counting

⌊999/35⌋ = 28

4

Apply inclusion-exclusion, then subtract

Multiples of 5 or 7 = 199 + 142 − 28 = 313. So 999 − 313 = 686

Answer: 686

2

Sample question

If z is a complex number such that z + 1/z = 1, find z¹⁰⁰ + 1/z¹⁰⁰.

Animated solution

1

Find z

z + 1/z = 1 → z² − z + 1 = 0, whose roots are the primitive 6th roots of unity: z = e^(±iπ/3)

2

Use the period

Since z⁶ = 1, powers of z repeat every 6 steps; 100 mod 6 = 4

3

Reduce the exponent

z¹⁰⁰ = z⁴ = e^(i4π/3), and since |z| = 1, z¹⁰⁰ + 1/z¹⁰⁰ = 2cos(4π/3)

4

Evaluate

cos(4π/3) = −1/2, so the expression = 2 × (−1/2) = −1

Answer: −1

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