Math Dictionary of Mathematics Definitions

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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