Think in groups of fives and tens when performing operations and representing numbers. Intuitive and easy-to-use. Lots of features for advanced learning. FEATURES 1. Choose 1, 2, or 10 rows 2. Easily move and reset beads 3. Select 10 or 20 beads per row 4. Convenient grid 5. 100-bead string 6. Handy annotation tools 7. Common Core teaching ideas MATH TOPICS 1. Adding Within 20 2. Subtracting within 20 3. Adding Two-Digit Numbers 4. Composition and Decomposition 5. Counting 6. Place Value 7. Multiplication