Hundred Bead Abacus for Children Compared to other companies' products, Gakken's version has numbers written on it, making it easier for children to understand. The fact that it stands on its own is also convenient. Through play, children can practice "counting numbers" and compare "the quantity of numbers." Above all, I feel it was effective for them to learn "numbers up to 100" by actually moving the beads and "seeing" them. The ability to understand "how many more to make 10" leads to the concept of addition and subtraction. It's sturdy and has rounded wooden edges, so it's a great educational toy from Gakken, as expected. The corners of the box are slightly softened, and the paper with the illustrations inside is slightly torn. *Guidebook and drill are missing. *Price negotiations are welcome. #EducationalToy #Abacus #Gakken