| A | B |
|---|
| expression | a mathematical phrase or the part of a number sentence that combines numbers, operation signs, and sometimes variables, but doesn't have an equal sign |
| numerical expression | a mathematical phrase that uses only numbers and operation symbols |
| variable | a letter or symbol that stands for one or more numbers |
| algebraic expression | an expression that includes at least one variable |
| evaluate | to find the value of a numerical or algebraic expression |
| equation | an algebraic or numerical sentence that shows that two quantities are equal |
| solution | a value that, when substituted for the variable, makes an equation true |
| order of operations | a special set of rules which gives the order in which calculations are done in an expression |
| terms | the parts of an algebraic expression that are separated by an addition or subtraction sign |
| commutative property | if the order of the addends or factors is changed, the sum or product stays the same |
| associative property | the way addends are grouped or factors are grouped does not change the sum or product |
| identity property | the sum of zero and any number equals that number. The product of one and any number equals that number |
| distributive property | multiplying a sum by a number is the same as multiplying each addend in the sum by the number and then adding the products |
| zero property of multiplication | the product of any number and zero is zero |
| function | a relationship between two quantities in which one quantity depends upon the other |
| inequality | a mathematical sentence that uses symbols to show a relationship between two quantities that are not equivalent |
