Introduce math addition and subtraction with the officially licensed Numberblocks Adding and Subtracting Puzzle Set! Explore the relationship between Numberblocks One through Ten by adding or subtracting One to find new Numberblock friends. These self-correcting puzzles are perfect for practicing early addition and subtraction from 1 to 10. Engage your child in toddler learning activities with 20 self-correcting puzzles explaining adding and subtracting by one. Prepare your little one for kindergarten with this fun and educational puzzle set. Enjoy fast shipping and multiple payment options. Shop now and bring math learning to life with Numberblocks! Don't miss out on the opportunity for your child to master key math skills and discover the joy of learning. Order the officially licensed Numberblocks Adding and Subtracting Puzzle Set today.