Ключевые слова: answer, arithmetic, background, black, blue, business, challenge, childhood, close, closeup, color, colorful, concept, count, decoration, design, education, educational, fun, game, green, illustration, isolated, kids, kindergarten, learn, magnet, math, mathematics, maths, number, numeracy, pattern, pencil, pieces, plastic, play, playthings, preschool, school, schooling, sheet, symbol, symbols, teach, texture, toys, up, yellow,