Across
- 4. - a small plastic card that you can use to buy goods and services and pay for them later
- 5. - place where people used cacao beans as money
- 6. - to exchange goods instead of using money
- 8. - place where people first used gold and silver coins
- 9. - place where rulers gave people a home and food in return for their work
Down
- 1. - place where the first payment system using cellphones appeared
- 2. - a yellow precious metal used for making coins, jewellery, beautiful objects, etc.
- 3. - a shiny, grey-white precious metal used for making coins, jewellery, beautiful objects, etc.
- 4. - place where people used paper certificates instead of metal coins
- 7. - place where people bartered things