2 PCS Roller Digital Teaching Stamps, Addition and Subtraction Math Roller Stamps Within 100 for Kindergarten Home School Supplies

About This Product :

• You will receive 2pcs roller digital teaching stamps including 1pcs addition and subtraction teaching stamps within 100 + 1pcs three-column addition and subtraction seal.
• The arrangement needs to be changed every 10 math questions to avoid repetition.
• The math roller stamps use a photosensitive process and are clearly stamped.
• Both children”s teaching stamps come with a bottle of ink that can be added for repeated use.
• The teaching stamps exercise your child”s calculation skills and make a fun and meaningful gift for your child”s!