- Algebraic Expressions and Equations
- Plane Geometry
- Solid Geometry
Video by Art of Problem Solving's Richard Rusczyk.
- Percents and Fractions
- Solid Geometry
For the following problems, assume that the snowballs are perfect spheres. Chiquita and Rhonda are each building a snowman. Rhonda tells Chiquita that she is making each of her 3 balls of snow 20%...
- Probability, Counting and Combinatorics
The Walton and the Brady families plan to vacation together in an 8-bedroom vacation home. John and Olivia will bring six children — boys, Jason, Ben and Jim-Bob, and girls, Mary Ellen, Erin and...
- Percents and Fractions
- Probability, Counting and Combinatorics
- Proportional Reasoning
The date of the beginning of the school year has long been a topic of debate in many areas across the United States, but the trend is leaning towards starting school earlier rather than later...