The following table shows the most common units as well as simple conversions from one unit to another. You can use it to answer the practice questions that follow.

## Practice questions

Calculate each of the following:- 7 quarts = ________________ cups
- 5 miles = ________________ inches
- If you have 420 minutes, how many hours do you have?
- If you have 22,000 pounds, how many tons do you have?

## Answers and Explanation

- The answer is 28 cups. This problem asks you to convert a large unit to a smaller one, so use multiplication: 2 cups are in a pint and 2 pints are in a quart, so So 4 cups are in a quart; therefore,
- The answer is 316,800 inches. This problem asks you to convert a large unit to a smaller one, so use multiplication: 12 inches are in a foot and 5,280 feet are in a mile, so 63,360 inches are in a mile, so
- The answer is 7 hours. This problem asks you to convert a smaller unit to a larger one, so use division: There are 60 minutes in an hour, so divide by 60:
- The answer is 11 tons. This problem asks you to convert a smaller unit to a larger one, so use division. There are 2,000 pounds in a ton, so divide by 2,000