可爱的小猫.ppt

文档介绍：可爱的小猫 3 2 3 1 2 1 2 1 1 0 1 1 0 5 – 1 = 4 4 + 1 = 5 5 – 2 = 3 3 + 2 = 5 5 – 3 = 2 2 + 3 = 5 5 – 4 = 1 1 + 4 = 5