| A | B |
|---|
| variable | a letter used to represent one or more numbers |
| Order of operations | rules that tell you which operations to do first |
| terms | parts of an expression separated by a + or - sign |
| constants | numbers, or quantities, that do not change |
| coefficients | a number that multiplies a variable |
| like terms | terms that have the same variables with the same exponents |
| substitute | replace a variable with a number or expression |
| equation | a statement that two expressions are equal |
| Commutative Property | the order of two numbers does not matter when you add or multiply |
| Associative Property | the grouping of more than two numbers does not matter when you add or multiply |
| Identity Property | adding 0, or multiplying by 1, does not change a number |
| Addtion Property of Opposites | the sum of a number and its opposite is 0 |
| Zero Property of Multiplication | the product of any number and 0 is 0 |
| Distributive Property | multiply a sum or difference by a number by multiplying each term of the sum or difference by the number |
