Addition & Subtraction Learning Puzzles by Scholastic

Here's a fun way to teach and reinforce addition and subtraction skills. The 20 self-checking, 5-piece puzzles in the set are designed to help children develop automaticity in addition and subtraction. Each puzzle is unique and features the answer on the center piece, and four puzzle pieces, each showing an addition or subtraction problem. Includes 10 double-sided puzzles plus a 2-page teaching guide. For grades Pre-K to 1.