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Long ago in Vietnam, coins had a square hole in the middle.

Long ago in Vietnam, coins had a square hole in the middle.

People slid the coins onto a string through the hole. That way they could carry lots of coins together without dropping them!

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Money is what people use to pay for things they want or need. Money is what people use to pay for things they want or need. In Vietnam, money is counted in đồng. In Vietnam, money is counted in đồng. Money can be paper bills or metal coins. Money can be paper bills or metal coins. A big bill can be traded for smaller coins that add up the same. A big bill can be traded for smaller coins that add up the same. Long ago, before money, people swapped things they had. Long ago, before money, people swapped things they had.