Ключевые слова: abacus, accountancy, adding, american, ancient, antique, arithmetic, background, bank, bar, bookkeeping, budget, business, calculate, calculation, calculator, cash, colored, computation, concept, costs, creative, dollars, economics, economy, education, estimate, expenses, finance, financial, insolvency, mathematic, money, office, old, payment, poverty, red purse, retro, salary, savings, school, score, timber, tool, top view, traditional, vintage, wood, wooden,