MINI #13 - COUNTING THE NUMBER OF SUBSETS OF A SET Number Theory Probability, Counting and Combinatorics Video by Art of Problem Solving's Richard Rusczyk. Read More
MINI #6 - MATHCOUNTS POSTER SOLUTIONS Measurement Probability, Counting and Combinatorics Video by Art of Problem Solving's Richard Rusczyk. Read More
MINI #100 - CAREFUL COUNTING: A MEASUREMENT LESSON Measurement Video by Art of Problem Solving's Richard Rusczyk. Read More
DISTANCE = RATE X TIME Algebraic Expressions and Equations General Math Explore the formula d = rt by starting with unit conversion problems. Mathletes will solve for distance, rate and time by paying attention to the units given in the problem and using the appropriate... Read More