The
customary system
is a
system of measurement used in the United States to describe how
long, how heavy, or how big something is.


Ounce
and pound are units for measuring weight. 

Weight:
16
ounces (oz.) = 1 pound (lb.)


Conversions 
The
chart above shows the relationships between ounces and
pounds. You can use the chart to change a measurement from
ounces to pounds or from pounds to
ounces. 
Bob's
kitten weighs 3 pounds. How many ounces is this? 
To
change from a larger unit of length to a smaller unit of
length, multiply. 
3 lbs. =
ounces 
Since, 1 lb. = 16 oz. 
3 x 16 = 48 
So, 3 lbs. = 48 oz. 
Ben's
guinea pig weighs 32 oz. How many pounds is this? 
To
change from a smaller unit of length to a larger unit of
length, divide. 
32 oz. =
lbs. 
Since, 16 oz. = 1 lb. 
32 ÷
16 = 2 
So, 32 oz. = 2 lbs. 

Remember:

The customary system
can describe an object's
length,
weight , or volume. 
Click on the scale for
practice.
