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Base

A number that is used as a factor when raised to a power. Example 34.

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Exponent

The number that indicates how many times the base is used as a factor. Example of exponent 34.

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Power

A number produced by raising a base to an exponent. Example 34 "three to the fourth power".

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Exponential Form

An expression written using exponents.

635 = (6 x 102) + (3 x 101) + (5 x 100)

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Scientific Notation

A number written as a product of a number between 1 and 10 and a power of 10. Example 3500 is written as 3.5 x 103 in scientific notation.

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Coefficient

The base number in scientific notation that must be greater than or equal to 1 but less than 10.

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Square Root

One of two equal factors of a number. Example 25 = 5 x 5 and 25 = -5 x-5 so 5 and -5 are square roots of 25.

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Perfect Square

A number whose square root is a whole number. Example 36 is a perfect square because 6 x 6 = 36 and -6 x -6 = 36.

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Radical

The symbol used to represent the square root of a number

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