The books (Volumes 1 to 5) can be used by 5th to 8th grade students preparing for Mathcounts State and National Competitions.
Training class is offered: http: //www.mymathcounts.com/Copied-2015-Mathcounts-State-Competition-Online-Training-program.php.
Each chapter consists of (1) basic skill and knowledge section with plenty of examples, (2) exercise problems, and (3) detailed solutions to all problems.
The books (Volumes 1 to 5) can be used by 5th to 8th grade students preparing for Mathcounts State and National Competitions