Page 111 - Math Smart - 7

The metric system

The standard base unit for measuring length is the metre, the base unit for
measuring mass Is the gram, and the base unit for measuring capacity is the litre.
Sometimes the quantity we are measuring is too big or too small to measure
using the base unit.

In the metric system, prefixes are used to indicate the size of a unit in comparison
to the standard base unit.

Length Mass Capacity

Kilometre Kilogram Kilolitre
Hectometre Hectogram Hectolitre larger units

Decametre Decagram Decalitre
base unit metre gram litre

decimetre decigram decilitre

centimetre centigram centilitre smaller unit
millimetre milligram millilitre

Common prefixes in the metric system
Some prefixes give you
Kilo —> Kilo in kilometres means 1000 an idea about the size
of the unit compared to
Hecto—>- Hecto in hectometres means 100
the base unit.
Deca —>■ Deca in decametres means 10

deci —> deci in decimetres means io
There are standard
centi — cent! in centimetres means abbreviations for units in
the metric system.
milli —*- milli in millimetres means
Length
Metric unit Abbreviation
Check My kilometre km
Understanding metre m
centimetre cm
O Arrange the following lengths in ascending order. millimetre mm

1 kilometre 1 centimetre 1 millimetre 1 metre 1 decimetre Mass
Metric unit Abbreviation
O Arrange the following masses in descending order.
tonne t
1 gram 1 hectogram 1 centigram 1 kilogram 1 milligram kilogram kg
O Arrange the following capacities in ascending order. gram g
Capacity
1 decalitre 1 decilitre 1 litre 1 milHlitre 1 kilolitre
Metric unit Abbreviation
litre i
millilitre ml