| Base: |
The repeated factor in an exponential
expression |
| Exponent: |
The number of times the factor is
repeated in an exponential expression |
| Expanded Form: |
Writing an repeated factor without using
exponents (2•2•2•2) |
| Exponential Form or Exponential
Expression: |
Writing a repeated factor using exponents
(2 4) |
| Standard Notation: |
The manner in which numbers are normally
written |
| Scientific Notation: |
An expression written as the product of a
number whose absolute value is between 1 and 10,
including 1, and an integer power of 10. |
| Principal Root: |
The positive square root of a number |
| Negative Root: |
The negative square root of a number |
| Irrational Number: |
A number that cannot be expressed as a
fraction (ex:  ) |
| Real Number: |
The set of all rational and irriational
numbers |
| Radicand: |
The number inside the radical sign |
| Index: |
The power being reversed in a radical
expression |