Simple Addition & Subtraction Learning Puzzles

Teach and reinforce essential early skills with these 20 self-checking, five-piece puzzles. Each puzzle features a center piece and four matching puzzle pieces. Unique die cuts on each puzzle make self-correction a snap! These 8" x 8" plastic-coated puzzles are durable and easy for small hands to manipulate. Includes an activity guide. For use with Grades K-2.