The Math Profs
Math Profs Store
Blog
How Many Socks?
Grids for Kids
Barnyard Math
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Sample puzzles from the books:
Sample from Level 1
Sample from Level 2
Sample from Level 3
Sample from Level 4
Sample from Level 5
Math Profs Store
Blog
How Many Socks?
Grids for Kids
Barnyard Math
Reviews
authors