Order these units from smallest to largest: one quart, one gallon, one cup
The units of volume listed from smallest to largest would be:
1. One cup
2. One quart
3. One gallon
Explanation:
- There are 2 cups in a pint and 2 pints in a quart, which means there are 4 cups in a quart.
- There are 4 quarts in a gallon.