Heres 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-great for self-checking-and features the answer at the center piece and four puzzle pieces, each showing an addition or subtraction problem!

Includes:
10 two-sided, self-checking puzzles (20 puzzles in all)
Teaching guide