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Express/Equations
Ch. 7,8,9
| Term | Definition |
|---|---|
| Algebraic Expression (Ch.7) | An expression that includes at least one variable |
| Base (Arithmetic) | A number used as a repeated factor |
| Coefficient | A number that is multiplied by a variable |
| Difference | The answer to a subtraction problem |
| Exponent | A number that shows how many times the base is used as a factor |
| Evaluate | To find the value of a numerical or algebraic expression |
| Equivalent Expressions | Expressions that are equal to each other for any values of their variables |
| Factor | A number multiplied by another number to find a product |
| Like Terms | Expressions that have the same variable with the same exponent |
| Numerical Expression | A mathematical phrase |
| Order of Operations | A set of rules which gives the order in which calculations are done in an expression |
| Product | The answer to a multiplication problem |
| Quotient | The number that results from a division problem |
| Sum | The answer to a addition problem |
| Terms | The parts of an expression that are separated by an addition or subtraction sign |
| Variable(Ch.7) | A letter or symbol that stands for an unknown number or numbers |
| Addition Property of Equality (Ch.8) | If you add the same number to both sides of an equation, the two sides will remain equal |
| Division Property of Equality | If you divide both sides of an equation by the same nonzero number, the two sides will remain equal |
| Equation | An algebraic or numerical sentence that shows that two quantities are equal |
| Inequality | A mathematical sentence that contains the symbol <, >, |
| Inverse Operations | Opposite operations, or operations that undo each other, such as addition and subtraction or multiplication and division |
| Identity Property of Addition | The property that states that when you add zero to a number, the result is that number |
| Identity Property of Multiplication | The property that states that the product of any number and one is that number |
| Multiplication Property of Equality | If you multiply both sides of an equation by the same number, the two sides will remain equal |
| Reciprocal | Two numbers are reciprocals of each other if their product equals one |
| Solution of an Equation | A value that, when substituted for the variable, makes an equation true |
| Solution of an Inequality | A value that, when substituted for the variable, makes an inequality true |
| Subtraction Property of Equality (Ch.8) | If you subtract the same number from both sides of an equation, the two sides will remain equal |
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