This HiSET Practice Test question comes from the Standards of Measure section of our HiSET Online Course. This math lesson breaks down the volume, weight, length conversions, and more. To test your math skills, take a free HiSET Practice Test.

The correct answer is (D.) 6.7 centimeters.

**67 mm×1 cm10 mm=6710=6.7 cm**.

The basic units of measure of length in the standard measurement system are inches, feet, yards, and miles. There are 12 inches (in.) in 1 foot (ft.), 3 feet (ft.) in 1 yard (yd.), and 5,280 feet (ft.) in 1 mile (mi.).

The basic unit of measure of metric length is meters. There are 1,000 millimeters (mm), 100 centimeters (cm), and 10 decimeters (dm) in 1 meter (m). There are 10 meters (m) in 1 dekameter (dam), 100 meters (m) in 1 hectometer (hm), and 1,000 meters (m) in 1 kilometer (km).

To convert from one unit to the other, multiply by the appropriate factor.

For an in-depth lesson about the different conversions and every other topic you’ll be tested on the HiSET, check out our all-inclusive HiSET online course with videos, color images, flashcards, 4 practice tests, and more.

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