Number decomposition box with 20 balls | Split box shake box learn math elementary school

Number breaking box (12.5 x 7.5 x 1.5 cm) with three separable chambers and 20 red balls made of RE-Plastic®. 5 balls can be next to each other = easy counting in steps of 5 possible. Packed in RE-Plastic® bag. - Breaking down numbers (2-20) into two or three subsets, developing a basic understanding of mathematics - Use of technical terms such as 1st summand + 2nd summand = sum; Minuend – Subtrahend = difference - Count, add and subtract in the number range up to 20 with self-control - RE-Plastic® is 100% post-consumer recycled plastic that is 100% recyclable over and over again. - Manufactured in Bensheim/Hessen/Germany.