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Length Conversions Worksheet
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Length Conversions Worksheet
Mele, Keira and Tui are checking distances and equipment measurements for a ferry trip. Convert between millimetres (mm), centimetres (cm), metres (m) and kilometres (km). Use 10 mm = 1 cm, 100 cm = 1 m and 1,000 m = 1 km. Show your working and include units.
A useful conversion ladder
Moving to a larger unit means divide; moving to a smaller unit means multiply. Each step changes by a factor of 10, 100 or 1,000 as appropriate. For example, 2.4 m = 240 cm.
1.The ferry’s safety line is 3.6 m long. How many centimetres is that?
2.Keira measures a sign as 245 cm wide. Convert its width to metres.
3.A cable is 1,850 mm long. Convert its length to centimetres.
4.The ferry route between two wharves is 4.7 km. How many metres is this?
5.Choose the correct conversion for 0.82 m.
- 8.2 cm
- 82 cm
- 820 cm
- 0.082 cm
6.True or false: 3,250 m is equal to 3.25 km. Explain briefly.
7.Fill in the missing value: 6.08 m = mm.
8.Tui records three lengths: 0.9 m, 85 cm and 920 mm. Put them in order from shortest to longest. Convert to one unit first to compare.
9.A storage compartment is 2.35 m long. Mele has a crate that is 238 cm long. How much longer is the crate than the compartment, in centimetres?
10.The ferry travels 12.6 km before its first stop and another 8,450 m afterwards. What is the total distance in kilometres?
11.A deck strip measures 175 cm. Write this length in metres and millimetres. Briefly explain how you know the units are equivalent.
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