Ключевые слова: abacus, accessories, background, beads, blue, books, bright, close, closeup, college, color, colorful, concept, count, education, educational, equipment, exercise, green, group, isolated, knowledge, learn, mathematics, maths, nobody, pencils, photo, read, red, school, shot, stationery, studio, study, supplies, tool, toy, up, vivid, white, wooden, yellow,