公文式教育数学游戏 FfoRead 5-7岁益智游戏 加减法练习 KUMON Ages 5-7 over 00 MATH activities GAMES GAMES Practice addition and subtraction by solving fun I puzzles Practice addition and subtraction by solving fun 5+ and write numbers 1-30 and has started to show an interest in basic addition will help develop his or her calculation skills.Your child will also develop -ina naimber puzzles. 读乐乐 精选全球童书