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Final Exam Practice
Final Exam Practice 7th Grade
| Term | Definition |
|---|---|
| Numerator | The top number in a fraction |
| Reciprocal | Flipping a fraction |
| Improper Fraction | A fraction where the numerator is greater than the denominator |
| Mixed Number | A number made up of a whole number, which is not zero, and a fraction |
| Denominator | The bottom number in a fraction |
| Natural Numbers | A set of numbers that only contain positive counting numbers |
| Integers | The set of whole numbers and their opposites |
| Whole Numbers | A set of numbers that only include positive counting numbers and zero |
| Rational Numbers | Any number that can be expressed as a ratio of two integers (as a fraction a/b). |
| Repeating Decimal | A decimal in which one or more of the digits repeat infinitely |
| Terminating Decimal | A decimal number that comes to an end; does not repeat |
| Negative Numbers | Numbers that are less than zero |
| Positive Numbers | Numbers that are greater than zero |
| Absolute Value | A number’s distance from zero on the number line |
| Opposite | Two numbers that are equal distance from zero but on opposite sides of the number line |
| Coefficient | The number that is multiplied by the variable in an algebraic expression (3a) |
| Inequality | A mathematical sentence that shows the relationship between quantities that are not equivalent |
| Constant | A value that does not change |
| > | Greater than |
| < | Less Than |
| Operations | A mathematical process, such as addition, subtraction, multiplication, or division |
| Algebraic Expression | An expression that contains at least one variable |
| Equation | A mathematical sentence that shows that two expressions are equivalent |
| Variable | A symbol used to represent a quantity that can change |
| Solution | A value or values that make an equation true |
| Customary System | The measurement system often used in the United States |
| Conversion Factor | A ratio of two equivalent measurements |
| Percent | Ratio compared to 100 |
| Rate of Change | Rate that describes how one quantity changes in relation to another quantity |
| Ratio | fraction |
| Unit Rate | A rate in which the second quantity in the comparison is one unit |
| Sales Tax | Tax on the sale of an item or service as a percent of the purchase |
| Metric System | A decimal system of weights & measures used universally Kilo…, Hecto…, Deca…, / Deci…, Centi…, Mili… |
| Y-Coordinate | The second number in an ordered pair |
| X-Coordinate | The first number in an ordered pair |
| Ordered Pair | A pair of numbers, (x,y), used to locate a point on the coordinate plane |
| Y-axis | On the coordinate plane, the line that runs vertically |
| X-axis | On the coordinate plane, the line that runs horizontally |
| Quadrant | On the coordinate plane, the four regions formed by the x and y axes |
| Rate of Change | A rate that describes how one quantity changes in relation to another quantity |
| Proportion | A statement that two rates or ratios are equivalent |
| Origin | The point on the coordinate plane where both axes cross, (0,0) |
| Proportional Relationship | A relationship between two quantities in which the ratio of one quantity to the other quantity is constant |
| Constant of Proportionality | The constant value (often written k) relating amounts that rise or fall uniformly together. k = y/x |
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