Roller Digital Teaching Stamp, Reusable Calculation Math Educational Toy Stamp, Teaching Math Practice Questions Within 100 for Addition Subtraction Multiplication Division (4pcs)

• Digital Teaching Stamp Roller: Adjustable numbers, gently rolling, can efficiently and quickly print out math practice questions within 100, it is a fun and meaningful gift for your children and friends' children!
• Improve the Efficiency of Learning: You can quickly prepare math problems for your kids at home, just roll the stamp, you can quickly print math problems, and it dries quickly, convenient and practical. Arrangement needs to be changed every 10 math problems to avoid duplication.
• Mathematics Skill Development: Rotate and adjust the column, and 10 different queuing methods can be adjusted. Satisfy all addition and subtraction numbers from 1-100, and cultivate children's logical calculation ability.
• Can be Used Repeatedly: Small and exquisite, easy to carry, and can be reused after adding ink. The imprint is clear, the color does not fade after drying, and it is not easy to smudge. Add printing ink, which can be used repeatedly, easy to use and fun.
• Perfect Educational Gifts for Kids: This is a great gift, when children need to practice math problems, parents can quickly prepare them for them, and children can also prepare for each other and learn together.

Product description Specifications: Material: PVC Size: 1.7in/43mm*1.1in/30mm*1.9in/48mm Styles: Add, Subtract, Multiply, Divide Package includes: 2/4 * Teaching stamps Kind tips: 1.Due to different monitors and lighting effects, the color may be slightly different from the image. 2.Due to manual measurement, the size allows a slight error. Safety Warning No