Mathematics is the science of numbers as Aristotle defined. Here we have collected all the important mathematics definitions. Browse these definitions or use the Search function for a specific definition.

Math Definitions

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There are currently 4 definitions in this directory beginning with the letter K.
Kilo-
A prefix meaning one thousand (1,000 or 103)

Examples:
• a kilogram is a thousand grams
• a kilometer is a thousand meters
• a kilobyte is a thousand bytes

Symbol is k

Example: 12 km = 12 kilometers = 12 thousand meters (12,000 m)
Kilogram
A Metric measure of mass (which we feel as weight).

The abbreviation is kg.

1 kg = 1000 grams.

1 kg = 2.205 pounds (approximately).
Kilometre | Kilometer
A Metric measure of distance. Equal to 1,000 meters.

The abbreviation is km.

Examples:
• it takes about 12 minutes to walk 1 km
• at highway speed a car goes about 100 km in an hour (100 km/h)
km/h
An abbreviation of "kilometers per hour", a metric measure of speed.

This is a sign showing a speed limit of 50 km/h

1 km/h = 0.6 miles per hour approximately

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