| A | B |
|---|
| real numbers | rational and irrational numbers |
| pi | irrational, represented as 3.14 |
| absolute value | distance from zero |
| natural numbers | counting numbers |
| is | equals |
| evaluate | solve |
| irrational number | # with decimal that does not repeat or terminate |
| -5.67 | rational |
| rational | numbers that can be expressed as the ratio of two integers |
| whole numbers | set of counting numbers plus zero |
| fraction | ratio of 2 integers |
| variable | letter to represent a number |
| algebraic expression | variable, number and operation, no equal sign |
| algebraic equation | variable, number, operation and equal sign |
| order of operations | PEMDAS |
| P | Parentheses |
| E | Exponents |
| M | Multiplication |
| D | Division |
| A | addition |
| S | subtraction |
| negative number | less than zero |
| positive number | greater than zero |
| zero | neither positive nor negative |
| infinity | goes on forever |
| integer | number that can be represented on a number line |
| prime | only factors are 1 and itself |
| composite | has more than 2 factors |
| even | can be divided by 2 evenly |
| odd | cannot be divided by 2 evenly |
| quotient | divided by |
| negative x negative | positive |
| positive x negative | negative |
