|  |  | 
 
 
| 4 | the product of any number and 1 is equal to the number | 
 
 
| 5 | reciprocal | 
 
 
| 6 | when you multiply the outer number to each number within the parentheses to simplify an expression | 
 
 
| 7 | the sum of any number and zero is equal to the number | 
 
 
| 8 | consists of one or more numbers and variables along with one or more arithmetic operations | 
 
 
| 9 | symbols used to represent unspecified numbers or values | 
 
 
| 10 | the sum of any two whole numbers is always a whole number is an example of this | 
 
 
| 12 | the way you group three or more numbers when adding or multipliying does not change their sum or product | 
 
 
| 13 | a rule to let you know which operation to perform first | 
 
 
| 14 | the order in which you add or multiply numbers does not change their sum or product | 
 
 
|  |