Converting metric units

Put these units of length in order, from smallest to largest.

• kilometres (km)

• metres (m)

• centimetres (cm)

• millimetres (mm)

There are​ (a)   millimetres in a centimetre.

There are​ (b)   centimetres in a metre.

There are​ (c)   metres in a kilometre.

• 10
• 100
• 1000

How many millimetres (mm) are in a centimetre (cm)?

• 100

• 10

• 1000

• 10000

Convert 4 cm to mm.

• 4000 mm

• 400 mm

• 40 mm

• 0.4 mm

Convert 23 mm to cm.

• 230 cm

• 2.3 cm

• 0.023 cm

• 0.23 cm

How many centimetres (cm) are in a metre (m)?

• 100

• 10

• 1000

• 10000

Convert 3.5 metres to centimetres.

• 350 cm

• 35 cm

• 3500 cm

• 0.035 cm

Convert 12 centimetres to metres.

• 1.2 metres

• 0.12 metres

• 0.012 metres

• 12 metres

How many metres (m) are in a kilometre (km)?

• 100

• 10

• 1000

• 10000

Convert 7 kilometres to metres.

• 700 metres

• 7000 metres

• 70 metres

• 0.007 metres