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Foundations

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Number Sense

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Fluency with arithmetic and foundational number theory.

Arithmetic and Number Theory Basics

Divisibility, primes, gcd, and modular arithmetic intuition for AMC 8 and AMC 10.
Updated: 3 minutes ago

Algebra Basics

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Algebra Basics

Linear equations, factoring, and manipulating expressions with confidence.
Updated: 3 minutes ago

Counting Fundamentals

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Counting Fundamentals

Rule of product, basic permutations and combinations, and careful casework.
Updated: 3 minutes ago

Geometry Basics

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Geometry Basics

Angle chasing, triangle facts, area, and circles.
Updated: 3 minutes ago

Word Problems

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Word Problems

Translate stories into equations, use ratios, rates, and mixtures.
Updated: 3 minutes ago

Intro to Probability

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Introduction to Probability

Basic probability, complements, and simple counting-based models.
Updated: 3 minutes ago