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Expression/equations
Chap 7, 8, 9
| Term | Definition |
|---|---|
| Algebraic Expression | 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. |
| Equivalent Expressions | Expressions that are equal to each other for any values of their variables. |
| Evaluate | To find the value of a numerical or algebraic expression. |
| Exponent | A number that shows how many times the base is used Aas a factor. |
| Factor | A number multiplied by another number to find a product. |
| Like Terms | Expressions that have the same variable with the same exponent. |
| Numerical Expressions | A mathematical phrase that uses only numbers and operation sings. |
| Order Of Operation | 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 dividing. |
| Sum | The answer to an additional problem. |
| Terms | The parts of an expression that are separated by an addition or subtraction sign. |
| Variable | A letter or symbol that stands for an unknown number or numbers. |
| Addition Property of Equality | 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. |
| 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 1 is that number. |
| Inequality | A mathematical sentence that contains the symbol <,>_, <,_> or /= |
| Inverse operations | Opposite operation or operation that undo each other, such as addition and subtraction or multiplication and division. |
| 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 1. |
| Solution of an Equation | A value that, when substituted for the variable, makes and equation true. |
| Solutions of an Inequality | A value that, when substituted for the variable, makes and inequality true. |
| Subtraction Property of Equality | If you subtract the same number from both sides of an equations, the two sides will remain equal. |
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sl028447
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