1. What do you know about inches?
2. What is the length of this rectangle in inches? 

1. An adult hippopotamus is 13 units long. Are the units inches or feet? Explain your reasoning.
2. A piece of chalk is 2 units long. Are the units inches or feet? Explain your reasoning.

1. What is the length of this rectangle? Use centimeters.

   

2. Write an equation.

Mai makes a headband. She uses a piece of fabric that is 71 centimeters long. She cuts off 18 centimeters. How many centimeters long is the fabric that is left?

Diego has a piece of ribbon that is 65 inches long. He cuts off a piece that is 20 inches long. He keeps the rest. Then he cuts off another piece that is 28 inches long. How much ribbon does he have left now?

Find objects in your classroom or at home that match the given measurements. Complete the table.

object I measured	estimated measurement	actual measurement
	7 centimeters
	7 inches
	7 feet
	7 meters

About how long of a line do you think you can make if your classmates stand side to side with your arms stretched out? What unit of measure would you choose? Explain your reasoning.