Key learning points

1. Prefixes give you information about the place value of a measure.
2. The measurement units determine the place value of each digit.
3. The measurement units can often be deduced from context.

Common misconception

Keywords

• Metric - Metric units are based around the standard units of metre, gram and litre.

• Prefix - A prefix is a group of letters attached to the front of a root (word) to make a new word, for example tricycle.

• Centi - Centi placed before a unit means (1/100)

• Milli - Milli placed before a unit means (1/1000)

• Kilo - Kilo placed before a unit means 1000 times.