Can you explain how current assets, current liabilities, total equity, long-term assets and long-term liabilities are calculated?

Balance Sheet Cash Accounts receivable Allowance for uncollectable accounts Accounts receivable, net Marketable securities Inventories Current Assets Propeny Plant and Equipment Accumulated deprecation - PPE Propeny Plant and Equipment, Net Other assets (long term) Goodwill Long-term Assets Total Assets Accounts payable Unearned Revenue Other current liabilities (accrued expenses) Current Liabilities Long-term payables Bonds payable -long term Long-term Liabilities Common stock Additional pad in capital Retained earnings Treasury stock Total Equity Total Liabilities and Equity 19,334 8,576 237 8,339 6,647 11,461 45,781 42,441 13,327 29,114 4, 723 3,784 37,621 83,402 25,309 4,768 13,739 43,816 12,607 7,694 20,301 5 16,201 4,916 (1 ,837) 19,285 83,402