Millimeter is used for measuring very small objects.
Millimeter is abbreviated as mm.
10 millimeter (mm) = 1 centimeter (cm)
10 centimeter cm = 1 decimeter (dm)
10 decimeter (dm) = 1 meter (m)
1 dekameter (dam) = 10 meters (m)
1 hectometer (hm) = 10 dekameter (dam)
1 kilometer (km) = 10 hectometer (hm)

Examples of Millimeter

The value of each small division is 1 mm.

Video Examples: How Many Cubic Millimeters Are in a Milliliter? : Math Conversions

Solved Example on Millimeter

Ques: Measure the length of the strip to the nearest millimeter.

Choices:

A. 80 mm
B. 70 mm
C. 75 mm
D. 8 mm
Correct Answer: B

Solution:

Step 1: The scale shown for measuring the strip is a centimeter scale.
Step 2: Each division in the centimeter scale is 1 mm. [1 cm = 10 mm.]
Step 3: The strip in the given figure is measuring 7 cm.
Step 4: 7 cm = (7 × 1) cm = (7 × 10) mm = 70 mm [Convert cm to mm.]
Step 5: So, the length of the strip to the nearest millimeter is 70 mm.