Reading a Straight Edge Created By: Dr. A. Dávila

Look at your straight edge closely to identify the customary (in for inches, ft for feet) or the metric side (cm for centimeter, mm for millimeter).

Most straight edge rulers have an excess edge.

If it does have an excess edge, start measuring from the first mark.

Each number identifies a whole. 1 centimeter

Notice the longer line segment and its corresponding number. whole centimeter

Notice the longer line segment and its corresponding number. This identifies the first whole centimeter. whole centimeter

Count the number of spaces between each line segment. Each space represents a millimeter. How many millimeters make a whole centimeter? fractions of a centimeter

Notice the first small line segment. This small line segment represents the first millimeter (on the meter side of a straight edge). 1 millimeters or 0.1 (1/10) of a cm

Notice the first small line segment. This small line segment represents the first millimeter (on the meter side of a straight edge). 2 millimeters or 0.2 (2/10 or 1/5) of a cm

Notice the first small line segment. This small line segment represents the first millimeter (on the meter side of a straight edge). 3 millimeters or 0.3 (3/10) of a cm

Notice the first small line segment. This small line segment represents the first millimeter (on the meter side of a straight edge). 4 millimeters or 0.4 (4/10 or 2/5) of a cm

Notice the first small line segment. This small line segment represents the first millimeter (on the meter side of a straight edge). 5 millimeters or 0.5 (5/10 or 1/2) of a cm

It takes 10 millimeters to make a whole centimeter. one centimeter one millimeter

How many centimeters make a whole decimeter? one decimeter

It takes 10 centimeters to make a whole decimeter. How many decimeters make a meter? one decimeter is equal to 10 cm

It takes 10 centimeters to make a whole decimeter. How many decimeters make a meter? 1/10 (0.1) of a decimeter

It takes 10 centimeters to make a whole decimeter. How many decimeters make a meter? 2/10 or 1/5 (0.2) of a decimeter

It takes 10 centimeters to make a whole decimeter. How many decimeters make a meter? 3/10 (0.3) of a decimeter

It takes 10 centimeters to make a whole decimeter. How many decimeters make a meter? 4/10 or 2/5 (0.4) of a decimeter

It takes 10 centimeters to make a whole decimeter. How many decimeters make a meter? 5/10 or 1/2 (0.5) of a decimeter

Relating the Metric System (Systéme Internationale) to the Decimal System Created By: Dr. A. Dávila

Meter (m) is the basic unit for length or distance

10 millimeters is equivalent to a centimeter

10 centimeters is equivalent to a decimeter

10 decimeters is equivalent to a meter

10 meters is equivalent to a dekameter

10 dekameters is equivalent to a hectometer

10 hectometers is equivalent to a kilometer

The metric system is similar to the decimal system.

Each place to the right is 10 times greater than the previous multiply by 10

Each place to the left is 10 times smaller than the previous place divide by 10

6 kilometers is equal to

6 kilometers is equal to 60 hectometers

600 dekameters

6 kilometers is equal to 60 hectometers 600 dekameters 6000 meters

6 kilometers is equal to 60 hectometers 600 dekameters 6000 meters decimeters

6 kilometers is equal to 60 hectometers 600 dekameters 6000 meters decimeters centimeters

6 kilometers is equal to 600 dekameters 6000 meters decimeters centimeters millimeters

8 meters is equal

8 meters is equal to 80 decimeters

8 meters is equal to 80 decimeters equal to 800 centimeters

8 meters is equal to 80 decimeters equal to 800 centimeters equal to 8000 millimeters

8 meters is equal to

8 meters is equal to 0.8 dekameters

equal to 0.08 hectometers

8 meters is equal to 0.8 dekameters equal to 0.08 hectometers equal to kilometers