Measuring with Tailor's Tape - 15.05.26 - Hiranga

Year 9–10 Mathematics — Measurement

Name:

Date:

📏 Part 1: Estimate, Measure & Convert

Before measuring each item, record your estimate. Then measure carefully using the tailor's tape, reading to the nearest millimetre. Complete the conversions.

1. Complete the table below. Measure each item and convert your measurement as shown.

a) Your arm span (fingertip to fingertip)
Estimate: _________ cm Actual measurement: _________ cm Convert to metres: _________ m

b) Your hand length (wrist to tip of middle finger)
Estimate: _________ cm Actual measurement: _________ mm Convert to centimetres: _________ cm

c) Your foot length
Estimate: _________ cm Actual measurement: _________ cm Convert to millimetres: _________ mm

d) Perimeter of your pencil case (measure all sides)
Estimate: _________ cm Actual measurement: _________ cm Convert to metres: _________ m

2. For one of your measurements above, how close was your estimate to the actual measurement? Calculate the difference.

I chose item: _____ Difference: _________ cm That is _________ mm

3. Fill in the blanks to complete these metric conversions.

a) 1 metre = _________ centimetres
b) 1 centimetre = _________ millimetres
c) 145 cm = _________ m
d) 38 mm = _________ cm
e) 2.6 m = _________ cm

4. Which unit (mm, cm, or m) would be most appropriate for measuring each of the following? Circle your answer.

a) The length of a sewing needle:

b) The width of a piece of fabric for a dress:

c) The thickness of a button:

🧵 Part 2: Cushion Cover Problem

Scenario: You are making a square cushion cover. The cushion measures 45 cm × 45 cm. You need to add a 1.5 cm seam allowance on every side so the cover can be sewn together neatly.

5. What will the total dimensions of the fabric piece need to be (including seam allowance on all sides)?

Total fabric dimensions: _________ cm × _________ cm

6. You have a piece of fabric that is 1 m wide. Will it be wide enough for your cushion cover? Show your working.

Answer:

Yes

No because _________________________________

7. You need to cut two identical fabric pieces (a front and a back) for the cushion cover. What is the total length of fabric you need to buy? Give your answer in both centimetres and metres.

Total length: _________ cm = _________ m

8. Use your tailor's tape to measure an actual object in the room that is close to 45 cm in length. Record what you measured and its actual length.

Object measured: _________________________ Measurement: _________ cm