Costs of homes can be very different in different parts of the United States.

1. A 450-square-foot apartment in New York City costs \$540,000. What is the price per square foot? Explain or show your reasoning.
2. A 2,100-square-foot home in Cheyenne, Wyoming, costs \$110 per square foot. How much does this home cost? Explain or show your reasoning.

There are 33.8 fluid ounces in a liter. There are 128 fluid ounces in a gallon. About how many liters are in a gallon?

1. 2
2. 3
3. 4
4. 5

Is your estimate larger or smaller than the actual number of liters in a gallon? Explain how you know.

Diego is 165 cm tall. Andre is 1.7 m tall. Who is taller, Diego or Andre? Explain your reasoning.

Name an object that could be about the same length as each measurement.

1. 4 inches
2. 6 feet
3. 1 meter
4. 5 yards
5. 6 centimeters
6. 2 millimeters
7. 3 kilometers