14 books • 2 series
Super Wordoku Book 2
Super Sudoku Fusion
Super Large Sudoku
Sudoku Sums
Super Variety Sudoku
Super Wordoku
Super Sudoku Book 2
Super Sudoku (Super Sudoku, #1)
Math Challenge Level I (Challenge)
Super Easy Sudoku
Stand Up Math
Stand Up Math, Level 2: Genius; 180 Challenging Problems for Kids
Stand Up Math, Level 1: Budding Genius
Helping Your Child with Mathematics