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Metric Length Measurement Conversions

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Metric Length Measurement Conversions

A team is preparing materials for a community makerspace. Convert lengths carefully so they can cut, pack and compare everything accurately. Remember: 1 m = 100 cm and 1 cm = 10 mm. Show your working where you can.

Get the units right

Use the metric relationships to solve each makerspace task.

1.The makerspace needs a 4 m length of cord. How many centimetres is that?

2.A strip of card is 360 cm long. Convert its length to metres.

3.A tiny screw is 48 mm long. How many centimetres is this?

4.The team needs 2.35 m of timber. Convert this length to millimetres.

Compare and plan

Use equivalent lengths to make fair comparisons and solve the workshop problems.

5.Put these three pieces of ribbon in order from shortest to longest: 1.4 m, 145 cm and 1,390 mm. Use the number line to help compare them.

6.A roll contains 5 m of paper. The team uses 175 cm for a poster. How many centimetres of paper remain?

7.A box can hold pieces up to 80 cm long. Which length will fit: 760 mm, 0.82 m or 8,050 mm? Choose one and explain how you know.

8.Three timber offcuts measure 125 cm, 0.8 m and 950 mm. What is their total length in metres?

9.A shelf is 1.2 m long. Jay says it is 120 mm long. Is Jay correct? Write the correct length in millimetres and explain the conversion.

10.The team is choosing a unit for each job. Choose the most sensible unit: (a) the length of a bench, (b) the thickness of a sheet of card, (c) the distance between two nearby towns.

11.Explain why 3.5 m is the same length as 350 cm. Include the operation you use to convert metres to centimetres.