Math Puzzles and Brainteasers, Grades 6-8 Math Puzzles and Brainteasers, Grades 6-8
2009
Contemporary Brainteasers Contemporary Brainteasers
2017
The Big Brain Puzzle Book The Big Brain Puzzle Book
2016
Challenging Math Problems Challenging Math Problems
2015
Math Puzzles and Brainteasers, Grades 3-5 Math Puzzles and Brainteasers, Grades 3-5
2009