Module 2 Vocabulary (Real Numbers)

Square Root of A Number

• One of its two equal factors

• Numbers written without an exponent

• The point where the sides of an angle meet

Perfect Square

• A rational number whose square root is a whole number

• To fall on a square line

• An angle inside of a polygon

• Used to indicate the principle square root

• Shows proportional relationships

• Another term for square roots

Principal Square Root

• The positive square root of a number

• All square roots of a number

• The four sections of the coordinate plane

The cube root of a number

• One of its three equal factors

• One of its two equal factors

• All natural numbers

Real numbers

• Numbers that can be found on a number line

• Numbers that cannot be expressed in decimal form

• Just numbers 1-1000

Irrational number

• A number that does not terminate or repeat.
  
  The true form of pi is an example

• A number that does terminate or repeat.
  
  3.14 is an example.

• Any number that is divisible by 5 and 10.

Natural Numbers

• 1, 2, 3. . . .

• 0, 1, 2, 3. . . .

• -1, 0, 1, 2 . . .

Integers

• The set of whole numbers and their opposites
  
  -1, 0, 1. . . .

• Numbers that neither terminate nor repeat eventually

• All numbers with at least two digits

Perfect Cube

• A number that is divisible by 2.

• A number whose cube root is an integer.

• The principle square root.