Gakken abacus 4 years old and 83783 Gakken's 100-dama (target age over)

Children practice ``counting'', comparing ``more or less'' numbers, and learning ``numbers up to 100'' by moving balls. You can count out loud the number of balls and objects in the illustrations, look at the numbers, and have fun understanding how numbers work. The colors of the balls and illustrations are linked, making it easy to understand and learn the basics of arithmetic. Contents: 1 unit, 2 study sheets, 32 cards, 1 guidebook