Ключевые слова: abacus, activity, addition, arithmetic, boy, brother, calculate, calculation, care, childhood, children, class, concept, count, creative, cute, day, draw, education, elementary, family, friends, girl, hand, hobby, home, homework, kindergarten, kindergartner, learn, leisure, lesson, lifestyle, little, logic, mathematic, number, play, preschool, school, sister, study, together, write, young,