DIVISIBILITY RULES Number Theory Mathletes will apply divisibility rules of various integers to simplify computation, better understand number composition and aid in problem solving. In the extension, Mathletes can prove why each of... Read More
MINI #14 - NUMBER SENSE/RIDDLES WITH REMAINDERS AND PERFECT SQUARES Algebraic Expressions and Equations Number Theory Video by Art of Problem Solving's Richard Rusczyk. Read More
MINI #16 - RELATIONSHIPS BETWEEN A BOX'S DIMENSIONS, VOLUME AND SURFACE AREA Measurement Solid Geometry Video by Art of Problem Solving's Richard Rusczyk. Read More
MINI #11 - TANGENT SEGMENTS & SIMILAR TRIANGLES Plane Geometry Proportional Reasoning Video by Art of Problem Solving's Richard Rusczyk. Read More
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
MINI #43 - USING SIMILARITY TO SOLVE GEOMETRY PROBLEMS Plane Geometry Proportional Reasoning Solid Geometry Video by Art of Problem Solving's Richard Rusczyk. Read More
MINI #57 - NUMBER SENSE: LOOKING FOR PATTERNS Number Theory Video by Art of Problem Solving's Richard Rusczyk. Read More
MINI #71 - NUMBER SENSE PROBLEMS WITH PATTERNS AND REMAINDERS Number Theory Video by Art of Problem Solving's Richard Rusczyk. Read More
MINI #75 - STRATEGIC GUESSING USING DIVISIBILITY RULES Number Theory Video by Art of Problem Solving's Richard Rusczyk. Read More
MINI #84 - TRAPEZOIDS AND TRIANGLES Coordinate Geometry Plane Geometry Video by Art of Problem Solving's Richard Rusczyk. Read More