Convert $80$80 millimetres to centimetres.
$80$80 mm = $\editable{}$ cm
Convert $500$500 centimetres to metres.
Convert $9000$9000 metres to kilometres.
Convert $7$7 metres to centimetres.
Connect decimal representations to the metric system
Convert between common metric units of length, mass and capacity
Solve problems involving the comparison of lengths and areas using appropriate units.