Practice measuring objects in inches and centimeters, choosing the best unit, and comparing lengths.
Read each problem carefully. Use a ruler when needed. Show your work in the space provided.
Practice choosing units, reading rulers, and comparing lengths
Math - Grade 2-3
- 1
A pencil is 7 inches long. Write the length of the pencil using a number and a unit.
- 2
A crayon measures 9 centimeters long. Is centimeters a good unit to measure a crayon? Explain.
- 3
Look at the ruler. The paper clip starts at 0 centimeters and ends at 4 centimeters. How long is the paper clip?
- 4
Which unit would you use to measure the length of a classroom door: inches or centimeters? Explain your choice.
- 5
A toy car is 5 inches long. A toy truck is 8 inches long. Which toy is longer, and how much longer is it?
- 6
Look at the ruler. The marker starts at 1 inch and ends at 6 inches. How long is the marker?
- 7
Circle the shorter length: 12 centimeters or 12 inches. Explain how you know.
- 8
A ribbon is 10 centimeters long. You cut off 3 centimeters. How many centimeters of ribbon are left?
- 9
Look at the line segment. It begins at 0 centimeters and ends at 6 centimeters. What is the length of the line segment?
- 10
Choose the best estimate for the length of a toothbrush: 7 inches or 7 feet. Explain your answer.
- 11
A book is 11 inches tall. A notebook is 9 inches tall. How much taller is the book than the notebook?
- 12
Look at the two strips. Strip A is 8 centimeters long. Strip B is 5 centimeters long. What is their total length if they are placed end to end?
- 13
Measure a real eraser with a ruler. Write its length in centimeters. If you do not have an eraser, use an object about the same size.
- 14
Look at the bug on the ruler. It starts at 2 centimeters and ends at 7 centimeters. How long is the bug?
- 15
Mia measured a spoon as 15 centimeters long. Leo measured the same spoon as 6 inches long. Can both measurements be reasonable? Explain.