Ключевые слова: account, accountant, accounting, adding, analyzing, balance, ballpoint, bills, business, buttons, calculate, calculation, calculator, data, earnings, electronics, entering, figures, finance, financial, finger, hand, income, keyboard, keypad, keys, ledger, machine, math, numbers, paper, pen, personal, printout, profit, report, return, revenue, tally, tax, taxation, total, typing,