Final answer:
The printing of separate currencies by Congress and the states created problems due to the difficulty in determining the worth of each currency and the lack of gold or silver by Congress.
Step-by-step explanation:
When both Congress and the states printed their own money, it led to problems because it was difficult to determine the worth of each currency. Since Congress did not have enough gold or silver to make coins, the value of their money became uncertain.
Learn more about problems created by printing separate currencies