mathcounts notes
The best math program for middle school students
Showing posts with label
Mathcounts questions
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Showing posts with label
Mathcounts questions
.
Show all posts
Wednesday, May 14, 2025
Similar Triangles: Team question : Beginning level
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9. In the figure below, quadrilateral CDEG is a square with CD = 3, and quadrilateral BEFH is a rectangle. If EB = 5, how many units is BH? ...
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Sunday, July 7, 2019
2012 Harder Mathcounts State Target Questions
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Check out Mathcounts here -- the best competition math program for middle schoolers up to the state and national level. # 6: A semic...
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Monday, November 7, 2016
How Many Zeros?
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Problems: (Solutions below.) #1. 2003 Chapter Team # 7 --How many zeros are at the end of (100!)(200!)(300!) when multiplied out? #2. H...
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Wednesday, February 6, 2013
2013 Mathcounts State Prep : Angle Bisect and Trisect Questions
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Proof : 2y = 2x + b (exterior angle = the sum of the other two interior angles) --- equation I y = x + a (same reasoning as above) -...
Monday, December 31, 2012
Harder Geometry Question from National Mathcounts
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Question: Similar to a 96 National Mathcounts question: Circles of the same colors are congruent and tangent to each other. What is the r...
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