PRACTICE #01: MONEY MATTERS Read the selection, and then answer the questions that follow. (1). Today we use two basic kinds of currency, or money: metal coins and paper bills. But once people bartered, or traded, for things they needed or wanted. In ancient Africa, salt was really valuable because people in many places didn’t have it, and they needed it to flavour and preserve their food. So people would trade abag of gold for a bag of salt! (2) Then, about 3,500 years ago, people started using seashells as money. The North American Indians used wampum, beads made of clamshells. In about 1,000 B.C., the Chinese minted the first metal coins. They had holes in the centres so they could be carried on a string, kind of like a key ring. Later, the Chinese invented paper money. (3) Before long, people around the world used coins and paper money to buy goods. Most people kept their money at home, tucked under a matt...