Mastering Length Conversion: Rulers & Unit Comparisons

1. Sarah has a ribbon that is 150 centimeters long. She wants to cut it into pieces that are each 50 centimeters long. How many pieces can she cut?

• 3

• 4

• 2

• 5

2. A pencil is 7 inches long. How many centimeters long is the pencil? (Use the conversion 1 inch = 2.54 cm)

• 20.32 cm

• 15.24 cm

• 17.78 cm

• 12.7 cm

3. Tom measured his desk and found it to be 120 centimeters wide. If he wants to know how many meters that is, what is the width of his desk in meters?

• 2.0 meters

• 1.2 meters

• 1.5 meters

• 0.9 meters

4. A garden is 3 meters long and 150 centimeters wide. What is the total length of the garden in centimeters?

• 400 centimeters

• 300 centimeters

• 3 meters

• 150 centimeters

5. Lisa has a piece of string that is 2.5 meters long. If she cuts off 75 centimeters, how much string does she have left in meters?

• 2.0 meters

• 1.5 meters

• 3.0 meters

• 1.75 meters

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

• 75 centimeters

• 120 centimeters

• 100 centimeters

• 50 centimeters

7. A soccer field is 100 meters long. How many centimeters long is the soccer field?

• 10000 centimeters

• 15000 centimeters

• 500 centimeters

• 1000 centimeters

8. If a toy car is 15 centimeters long, how many millimeters long is the toy car? (Remember that 1 cm = 10 mm)

• 50 mm

• 200 mm

• 100 mm

• 150 mm

9. Jenny has a piece of wood that is 1.2 meters long. If she needs it to be 90 centimeters long, how much wood will she need to cut off?

• 20 centimeters

• 50 centimeters

• 30 centimeters

• 40 centimeters

10. A swimming pool is 25 meters long. How many centimeters long is the swimming pool?

• 2500 centimeters

• 250 centimeters

• 1000 centimeters

• 25 meters