Ключевые слова: amount, background, board, chalk, chalkboard, closeup, color, concept, count, countdown, counter, counting, date, days, deadline, different, drawing, drawn, female, green, group, hand, holiday, jail, line, many, mark, mathematical, number, numbers, numeral, person, prison, quantity, school, score, sign, simple, stick, sticks, symbol, tally, term, time, vacation, waiting, white, woman, write, writing,