Which of the following coins is worth the least in U.S. currency?

The penny is worth the least in U.S. currency, with a value of one cent. It represents the smallest denomination of U.S. coins currently in circulation.

When considering the values of the other coins, the nickel is worth five cents, the dime is worth ten cents, and the quarter is worth twenty-five cents. Each of these coins has a higher value than the penny, which is why the penny is identified as having the least worth among U.S. coins. This understanding of coin values is essential for making change and performing basic transactions involving money.