##
Terms

**
Base
** -
The number that is raised to a power. In "7^{4}", 7 is the *base.*

**
Cube
** -
A number times itself times itself. 5 cubed = 5^{3} = 5×5×5 = 125.

**
Cube Root
** -
A number that, when cubed, is equal to the given number.

**
Exponent
** -
The power to which a number is raised; the number of times a number is
multiplied. In "7^{4}", 7 has an *exponent* of 4, and 7 is
multiplied 4 times (7×7×7×7).

**
Fractional Exponent
** -
An exponent in which the numerator is the power to which the number should
be taken and the denominator is the root which should be taken.

**
Mean
** -
The sum of two numbers, divided by 2 (sometimes called an *average*). This
yields the number directly between the two numbers.

**
Negative Exponent
** -
An exponent that takes the base number to the positive
opposite of the
exponent (the exponent with the negative sign removed), and places the result in
the denominator of a fraction whose numerator is 1.

**
Perfect Square
** -
The square of a whole number. 1, 4, 9, 16, 25, 36, 49, ... are all perfect
squares.

**
Simplify (Square Root)
** -
To remove all factors that are perfect squares from inside the square
root sign and place their square roots outside the sign.

**
Square
** -
A number times itself. 5 squared = 5^{2} = 5×5 = 25.

**
Square Root
** -
A number that, when squared (multiplied by itself), is equal to the given
number.