- MATHCOUNTS Mini
- Video
04/01/2012
Video by Art of Problem Solving's Richard Rusczyk.
- MATHCOUNTS Mini
- Video
03/01/2012
Video by Art of Problem Solving's Richard Rusczyk.
- MATHCOUNTS Mini
- Video
02/01/2012
Video by Art of Problem Solving's Richard Rusczyk.
- MATHCOUNTS Mini
- Video
01/01/2012
Video by Art of Problem Solving's Richard Rusczyk.
- MATHCOUNTS Mini
- Video
11/01/2011
Video by Art of Problem Solving's Richard Rusczyk.
- MATHCOUNTS Mini
- Video
05/01/2011
Video by Art of Problem Solving's Richard Rusczyk.
- MATHCOUNTS Mini
- Video
03/01/2011
Video by Art of Problem Solving's Richard Rusczyk.
- MATHCOUNTS Mini
- Video
12/01/2009
Video by Art of Problem Solving's Richard Rusczyk.
- MATHCOUNTS Mini
- Video
10/01/2010
Video by Art of Problem Solving's Richard Rusczyk.
- Practice Plan
An important formula to know, the difference of squares identity is derived geometrically in the video for this practice plan. Mathletes will then try.
Other Great Resources
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Our Story
The MATHCOUNTS Foundation is a 501(c)3 non-profit organization that reaches students in grades 6-8 in all US states and territories with 3 extracurricular math programs. More than a quarter million students participate in our programs or use our resources each year.
There are many paths to success in math. We help all students discover theirs.
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