Length Challenges: Adding, Subtracting, and Estimating

Sarah has a ribbon that is 120 centimeters long. She cuts off 45 centimeters to use for a project. How long is the remaining ribbon in centimeters?

• 75 centimeters

• 100 centimeters

• 65 centimeters

• 90 centimeters

A garden hose is 3 meters long. If you add another hose that is 2.5 meters long, what is the total length of both hoses in meters?

• 6 meters

• 4 meters

• 5 meters

• 5.5 meters

Tom measured his room and found it to be 4.5 meters long. He wants to estimate the length in centimeters. How many centimeters is that?

• 4500 centimeters

• 450 centimeters

• 400 centimeters

• 500 centimeters

A piece of wood is 150 centimeters long. If you need to use 60 centimeters for a shelf, how much wood will you have left in centimeters?

• 90 centimeters

• 60 centimeters

• 30 centimeters

• 150 centimeters

Lisa has a string that is 2.2 meters long. She wants to cut it into pieces that are each 0.5 meters long. How many pieces can she cut?

• 3

• 5

• 4

• 6

A swimming pool is 25 meters long. If you want to add a deck that is 10 meters long, what will be the total length of the pool and the deck in meters?

• 20 meters

• 35 meters

• 40 meters

• 30 meters

A pencil is 15 centimeters long. If you sharpen it and it becomes 2 centimeters shorter, how long is the pencil now?

• 12 centimeters

• 13 centimeters

• 14 centimeters

• 10 centimeters

You have a piece of fabric that is 3.5 meters long. If you use 1.2 meters for a dress, how much fabric do you have left in meters?

• 2.3 meters

• 2.0 meters

• 3.0 meters

• 1.5 meters

A book is 25 centimeters tall. If you stack 4 books on top of each other, what is the total height of the stack in centimeters?

• 125 centimeters

• 75 centimeters

• 100 centimeters

• 50 centimeters

A runner completes a 5-kilometer race. If she runs 2.3 kilometers in the first half, how much distance does she have left to run in kilometers?

• 3.5

• 2.7

• 1.5

• 4.0