2. The Metric System and SI Units
is a decimal system of
measurement
all units are multiples of 10
SI units
the international system of measurement units
from the French Le Systeme International d’unites
common SI units we will use include:
metre (m) for length
kilogram (kg) for mass
second (s) for time

3. Frequently Used Metric Quantities,
Units, and Symbols

4. Relationship to Base Unit
Metric Prefixes
Prefix
Symbol
Relationship to Base Unit
giga- G
109 =
mega- M
106 =
kilo- k
103 =
hecto- h
102 = 100
deca- da
101 = 10
base unit
100 = 1
deci- d
10-1 = 0.1
centi- c
10-2 =
milli- m
10-3 =
micro- μ
10-6 =
nano- n
10-9 =

7. Let’s try some conversions a) 1200 mg = ___________ g
 move decimal
Let’s try some conversions
a) mg = ___________ g
b) 1.5 L = ___________ mL
  c) 160 cm = ___________ mm
d) 14 km = ___________ dm
  e) 109 g = ___________ hg
f) 250 mm = ___________ dam
1.200
1500
move decimal 
1600
14 000
1.09
0.0250

8. Complete the Metric Mania
Now let’s practice …
Complete the Metric Mania
Conversion Challenge