Measuring Length Practice

Name:

Date:

📏 Part 1: Choosing the Right Tool and Unit

1. Which tool would be best for measuring the length of your pencil?

Ruler

Measuring tape

Metre stick

2. Which unit would be most appropriate for measuring the width of your classroom?

Millimetres (mm)

Centimetres (cm)

Metres (m)

3. What is the most important thing to remember when starting to measure with a ruler?

Start measuring from the 1 cm mark

Align the object with the zero mark

Hold the ruler above the object

4. Which measurements need units? (Check all that apply)

15 cm

8.5 mm

📐 Part 2: Reading Measurements

5. Look at the ruler markings. If an object starts at 0 cm and ends at the 7th small line after 3 cm, what is the measurement?

Measurement: _______ cm or _______ mm

6. Convert these measurements:

a) 5.2 cm = _______ mm

b) 180 cm = _______ m

c) 2.5 m = _______ cm

7. You measure your textbook and it's 25.6 cm long. Your friend measures the same book and gets 26.1 cm. Give one reason why your measurements might be different:

🎯 Part 3: Estimation and Measurement Practice

8. Before measuring, estimate the length of these classroom objects. Then measure them accurately and record both values with units.

Object 1: Your pen or pencil

Estimate: _______ cm Actual measurement: _______ cm

Object 2: Width of your desk

Estimate: _______ cm Actual measurement: _______ cm

Object 3: Length of your exercise book

Estimate: _______ cm Actual measurement: _______ cm

9. Which of your estimates was closest to the actual measurement? Why do you think this was?

10. Extension Challenge: Find an object in your classroom that measures approximately 1 metre. What did you choose and what was its actual measurement?

Object: _________________________

Actual measurement: _______ m or _______ cm