Greg Tang is back with his bestselling approach to addition and subtraction: problem solving. By solving challenges that encourage kids to "group" numbers rather than memorize formulas, even the most reluctant math learners are inspired to see math in a whole new way! Math Potatoes is full of Tang and Briggs' trademark humor, wit, and extraordinary creativity. Tang has proven over and over that math can be fun, and this new addition to his acclaimed series of mind-stretching math riddles is sure to be another hit.  Gr. 2-3.