- Algebraic Expressions and Equations
- Coordinate Geometry
- General Math
- Logic
- Measurement
- Number Theory
- Percents and Fractions
- Plane Geometry
- Probability, Counting and Combinatorics
- Problem Solving (Misc.)
- Proportional Reasoning
- Sequences, Series and Patterns
- Solid Geometry
- Statistics and Data
- Algebraic Expressions and Equations
- Number Theory
Explore Modular Arithmetic by working with remainders to solve problems about very large numbers.
- Number Theory
- Problem Solving (Misc.)
Mathletes are likely most comfortable working with numbers in base 10, but there are many other number systems to explore - other integer bases, fractional bases, and even negative bases. This plan...
- Number Theory
- Sequences, Series and Patterns
- Algebraic Expressions and Equations
- Coordinate Geometry
- General Math
- Logic
- Measurement
- Number Theory
- Percents and Fractions
- Plane Geometry
- Probability, Counting and Combinatorics
- Problem Solving (Misc.)
- Proportional Reasoning
- Sequences, Series and Patterns
- Solid Geometry
- Statistics and Data
- Percents and Fractions
Video by Art of Problem Solving's Richard Rusczyk.
- Percents and Fractions
Animation Type: Stop Motion. Original Handbook Problem: It is the policy of Sky Airlines to cancel any flight that has fewer than 80% of its seats filled. A Sky Airlines plane has 24 rows with 6 seats...
- Percents and Fractions
Animation Type: Computer Illustrated, Static Images