📏 Part 1: Units of Length

1. Circle the most appropriate unit to measure each item:

a) The length of a pencil

millimetres

centimetres

metres

kilometres

b) The distance from Auckland to Wellington

millimetres

centimetres

metres

kilometres

c) The height of a classroom door

millimetres

centimetres

metres

kilometres

2. Which units would you use to measure these items? Check all that would be reasonable:

The width of your thumb

millimetres

centimetres

metres

kilometres

🔄 Part 2: Converting Units

3. Convert these measurements. Show your working:

a) 2.5 metres = __________ centimetres

b) 450 centimetres = __________ metres

c) 3.2 kilometres = __________ metres

d) 85 millimetres = __________ centimetres

4. Fill in the missing conversions:

1 kilometre = __________ metres

1 metre = __________ centimetres

1 centimetre = __________ millimetres

1 metre = __________ millimetres

📐 Part 3: Reading Measurements

5. Look at the ruler markings below and write the measurements:

Object A measures: __________ cm

Object B measures: __________ cm

Object C measures: __________ mm

6. Draw lines of these lengths using the space below:

a) Draw a line 7.5 cm long

b) Draw a line 45 mm long

c) Draw a line 12.2 cm long

🧮 Part 4: Problem Solving

7. Sarah is measuring her bedroom to buy new carpet. The room is 4.2 metres long and 3.8 metres wide. What is the perimeter of her room?

Answer: __________ metres

8. A school running track is 400 metres long. How many kilometres would you run if you completed 5 laps?

Answer: __________ kilometres

9. Match the measurements with their equivalent values:

1. 2.5 metres

2. 1500 millimetres

3. 0.75 kilometres

4. 320 centimetres

A. 3.2 metres

B. 750 metres

C. 250 centimetres

D. 1.5 metres

🎯 Part 5: Estimation and Accuracy

10. Estimate the length of these common objects, then research or measure to check your estimate:

a) A standard paperclip

My estimate: __________ mm Actual measurement: __________ mm

b) The length of a cricket pitch

My estimate: __________ metres Actual measurement: __________ metres

c) The height of the Sky Tower in Auckland

My estimate: __________ metres Actual measurement: __________ metres

11. Explain why it's important to choose the correct unit when measuring length. Give two examples:

12. A builder needs to cut timber pieces of exactly 2.75 metres each. Explain why precision is important in this situation:

Measuring Length Worksheet

Measuring Length Worksheet

📏 Part 1: Units of Length

🔄 Part 2: Converting Units

📐 Part 3: Reading Measurements

🧮 Part 4: Problem Solving

🎯 Part 5: Estimation and Accuracy

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