hand2mind Numberblocks Adding and Subtracting Puzzle Set (95402)
- Explore the relationship between Numberblocks One through Ten by adding or subtracting One to find a new Numberblock friend
- For grades pre-K to 3
- Self-correcting puzzles are great for practicing early addition and subtraction from 1 to 10
- Package includes 20 colorful two-piece puzzles featuring Numberblocks One to Ten