History of Money

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Across
  1. 3. Act of buying and selling something
  2. 5. A metal used as money
  3. 6. Small piece of metal used as money
  4. 7. shell A shiny oval-shaped shell that was used as money
  5. 8. To give something and receive something else in return
Down
  1. 1. Exchanging goods or services
  2. 2. A stamp used to show something is official
  3. 4. Farm animals used for food or trade
  4. 6. A system of money used in a country