Our dry erase number line cards are a valuable addition to any classroom or home learning environment. They provide a practical and interactive way for students to practice addition and subtraction within 20. Teachers can use them to create engaging math activities, while parents can use them to support their child's learning at home. The cards are easy to clean and reuse, ensuring they remain a staple in math education. Features -Color:Multi -Material:Cardboard -Size:26.70X8.80X0.10cm/10.49X3.46X0.04in -Erase and practice: the dry erase feature allows for multiple practice sessions, helping children to master addition and subtraction within -Comprehensive learning tools: the set, providing a thorough understanding of basic math operations -Supports early learning: suitable for preschool and elementary students, these cards help develop math skills from a young age -Attractive : the beautifully designed cards capture children's attention, making learning math more engaging and enjoyable - and reliable: made from materials, these cards are built to withstand frequent use, ensuring educational value Package list: 16 x Dry Erase Board Card, 2