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How to Read a Ruler - U.S Customary System
A ruler is use to measure units of length, inches, feet
and yards.
A standard ruler is 12 inches or 1 foot long. 3
standard rulers measure 1 yard or 36 inches.

A ruler that is 36 inches long is called a yard stick.
To use a ruler, line up one end of an object with o or
the beginning of the ruler.
The numbers on the a ruler
Each inch on a ruler has marking in between that are
fraction of an inch. Example: the ruler below has marks
starting 1/16 of an inch up to 15/16.  Some have 4, 8, 16,
and 32 marks.
How to measure with a read a Ruler
example
The paper clip is 3/4of an inch long
Example of a standard ruler
standard ruler
This picture represents 1 inch of a ruler.
Represents 1 inch of a ruler.
1 inch ruler
3/4 is the same as 12/16
Equivalent marking on a ruler

1/8 is the same as 2/16
1/4 is the same as 4/16
3/8 is the same as 6/16
1/2 is the same as 8/16
5/8 is the same as 10/16
3/4 is the same as 12/16
7/8 is the same as 14/16
measuring pencil
Example2:
The pencil is about 1 1/2 inch long
inch
inch