MINI #40 - SUM AND AVERAGE OF AN EVENLY SPACED LIST OF INTEGERS Number Theory Video by Art of Problem Solving's Richard Rusczyk. Read More
PLANNING FOR NEXT YEAR General Math Percents and Fractions Problem Solving (Misc.) Kyra’s school building this year was overcrowded due to a lot of new registered students. Classroom space was a real issue. In looking ahead to next year, the administration figures that if teachers... Read More
MINI #32 - USING ALGEBRA AND NUMBER SENSE AS SHORTCUTS Algebraic Expressions and Equations Problem Solving (Misc.) Video by Art of Problem Solving's Richard Rusczyk. Read More
MINI #20 - USING THE DIFFERENCE OF SQUARES TO SOLVE PROBLEMS Algebraic Expressions and Equations Video by Art of Problem Solving's Richard Rusczyk. Read More
MINI #23 - PERFECT SQUARES/USING A SIMPLER CASE TO SOLVE A PROBLEM Algebraic Expressions and Equations Video by Art of Problem Solving's Richard Rusczyk. Read More
MINI #99 - CONDITIONAL PROBABILITY Probability, Counting and Combinatorics Video by Art of Problem Solving's Richard Rusczyk. Read More