Ключевые слова: ball, bank, bill, billing, calculate, cash, colored, costs, curly, data, detail, dollar, entire, euro, finance, financial, market, math, mathematics, money, multiply, number, office, owe, paper, pen, percent, plus, price, profit, proof, receipt, reel, result, roll, sales, shop, silver, store, sum, summing, supermarket, tax, total, value,