Ключевые слова: accounting, balance, business, calculate, calculation, calculator, cost of living, economy, estimate, examination, expenditure, finance, financial, fixed cost, household account book, income, income and expenditure, learning, ledger, management, math, national exam, national qualification, notebook, office work, payment, pen, person, qualification, re skilling, relearning, settlement of accounts, study, tax saving, taxes, work,