Ключевые слова: accounting, addition, aloft, amount, arabic, arithmetic, background, character, communicate, communication, concept, count, counting, digit, display, division, female, fifth, figure, font, hand, holding, human, information, integer, language, lettering, literature, maths, measure, measuring, multiplication, number, numeral, numerical, person, presenting, prime, purple, quantity, showing, sign, subtraction, text, twol, typescript, typo, typographical, up, zero,