Update

MathCounts athletes:

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mathcounts 2007

New additions!
mathcounts 2007 chap spr 19 and 21
mathcounts 2007 chap team 9

sprint
mathcounts 2007 chap spr 14
mathcounts 2007 chap spr 16
mathcounts 200 chap spr 23
mathcounts 2007 chap spr 25 27 start 29
mathcounts 29 finish 30 start
target
mathcounts 2007 chap tar 5
mathcounts 2007 chap tar 6
mathcounts 2007 chap tar 7
mathcounts 2007 chap tar 8
team
mathcounts 2007 chap team 6
mathcounts 2007 chap team 8

mathcounts 2008 answers

math counts 2008 sprint answers 1 to 19
mathcounts 2008 chapter answers sprint 20 to 30
mathcounts 2008 chapter answers target

mathcounts 2009 target round

These are the explination of the 3 problems that seemed to give the most troubles.
The previous post has explinations of two target round questions. I will post the answers to the 2008 chapter sprint and target rounds on Sunday morning so you can check your work. Enjoy your weekend, Go Saints!

target 4
math counts 2009 chapt tar 4
target 6
mathcounts 2009 chapter tar 6
target 7
mathcounts 2009 chapter tar 7

MathCounts 2008 chapter (updated 2/4)

target
4
mathcounts 2008 chapter tar 4
6
mathcounts 2008 chapter tar 6

team round:
4
mathcounts 2008 chapter team 4
5
mathcounts 2008 chapter team 5
7
mathcounts 2008 chapter team 7
8
mathcounts 2008 chapter team 8
9
mathcounts 2008 chapter team 9
10
mathcounts 2008 chapter 10 team 10