让超人气的Hello Kitty陪伴孩子一起学习减法百格计算！
透过读、写、计算的传统学习方式，反覆进行单纯的计算，锻炼孩童的大脑，从根本来改善孩童的学习，促进专注力和基础算数演算能力。

Introduce your child to the world of subtraction with Hello Kitty! This popular character will help your child sharpen their math skills through traditional learning methods. Practice repetitive calculations and improve concentration and basic arithmetic abilities.