Teachers can target key math skills and boost kids' math confidence with this collection of cross-number puzzles. Each book contains 40 reproducible puzzles that provide plenty of practice to help students master addition and subtraction, multiplication and division, or fractions, decimals, and percents. Because the puzzles each act as a self-checking device, they are perfect to use for level-appropriate, easy-to-manage homework, and for getting kids excited about math. For use with Grades 4-6. Usual Price $21.90