Within 20 Subtraction Ruler Plastic Addition Ruler Math Decomposition Ruler School Supplies

Label:Yes Clear numbers and accurate decomposition. Arithmetic learning, educational toy, durable, smooth. It is a wonderful way to arouse your baby's interest of cognition of numbers. Analyze addition and subtraction to make it easy for children to learn. This plastic ruler is a teaching aid designed specially for the kid. In addition, your baby's thought can also be exercised greatly. Playing with your kids will make them happy. Specifications: Material: Plastic Color: Pink, Blue Scale Length: 20cm Ruler Length: 25.5cm Usage: Slide the ruler to select numbers from the box, observe the numbers in the middle combination, and determine that the numbers in the box are the sum of the upper and lower numbers on the right.

Note: 1.The actual color may be a little different from the picture. 2.Due to manual measurement, the size may have 0-1cm difference.

Package Included: 1 * Math Decomposition Ruler