mathcounts notes

There are numerous similar triangle questions on Mathcounts. Here are the basics: If two triangles are similar, their correspond...

Sequences are fun to learn and not really that difficult.  There are many similarities between arithmetic and geometric sequences, so  lea...

From Mathcounts Mini : Counting/Paths Along a Grid From Art of Problem Solving Counting Paths on a Grid   Math Principles : Paths o...

Some of the harder/hardest questions at Mathcounts can be tackled at ease using mass point geometry so spend some time understanding it. ...

Links, notes, Hints or/and solutions to 2014 Mathcounts state harder problems. 2014, 2015 Mathcounts state are harder  Sprint round: ...

Questions written by Willie, a volunteer.  Answer key and detailed solutions below. 1a. There is a regular cylinder, which has a height ...

#22: The answer is 2674 .  See left for explanations. #23: Let the two consecutive positive integers be x and x + 1. ( x + ...

Check out Mathcounts here, the best competition math program for middle school students. Download this year's Mathcounts handbook her...