| A | B |
|---|
| Real Numbers | All rational and irrational numbers. |
| Rational Numbers | A number that can be expressed as a fraction or ratio when the numerator and the denominator are both integers. When the fraction is divided out, it becomes a terminating or repeating decimal. Includes counting numbers, whole numbers, integers, and non-integers. |
| Irrational Numbers | Numbers that cannot be written as a ratio (fraction) of two integers and when put in decimal form the number forms non-repeating, non-terminating decimals. |
| Natural Numbers | Counting Numbers such as 1, 2, 3..... |
| Whole Numbers | Counting Numbers and 0. |
| Integers | Counting Numbers, their opposites, and zero. |
| Non-Integers | Fractions that can be written as terminating or repeating decimals. |
| Terminating Decimal. | Decimal that comes to a complete stop. |
| Repeating Decimal | Decimal where any number of digits repeats forever. |
| Pi | An irrational number which equals approximately 3.14. |
| Absolute Value | A number's distance from 0 on a number line. |
| Scientific Notation | Is used to write very large (or very small) numbers as a number less greater than 1 and less than 10 as a power of 10. |
| Standard Form | The way we normally write numbers. |
| Expanded Form | Writing numbers as a sum of their place values. |
