Math 7th Review
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40 terms
Terms | Definitions |
|---|---|
 Mean | average |
| Median | middle number |
| Mode | the number that occurs most often |
| Range | difference between the highest and lowest numbers |
| Outlier | a value much greater or much less than the others in a data set |
| Sum | answer to an addition problem |
| Difference | answer to a subtraction problem |
| Quotient | answer to a division problem |
| Product | answer to a mutliplication problem |
| Order of Operations | the order in which math operations should be done |
| Upper Quartile | median of the upper half of a data set |
| Lower Quartile | median of the lower half of a data set |
| Box-n-Whisker Plot | a graph that divides data into 4 parts |
| Interquartile Range | the difference between the upper and lower quartiles |
| Scatter Plot | a graph that shows the relationship between two sets of data |
| Transformation | change in position or size of a figure |
| Translation | slide |
| Rotation | turn |
| Reflection | flip |
| Dilation | changes the size of an object, but not the shape |
| Inverse Operation | opposite operations that undo each other |
| Rational Number | a number that can be written as a fraction |
| Integer | whole numbers and their opposites |
| Equation | a mathematical sentence with an equal sign |
| Expression | a combination of numbers, variables, and operations without an equal sign |
| Distributive Property | a(b+c) = ab + ac |
| Absolute Value | distance from zero |
| Variable | a letter used to represent a number |
| Direct Proportion | y = kx |
| Inverse Proportion | y = k/x |
| Polyhedron | a solid figure with faces that are polygons |
| Cross Section | 2D shape created after slicing a solid figure |
| Bisect | cut into 2 equal parts |
| Parallel | lines in the same plane that do not intersect |
| Perpendicular | two lines that intersect to form right angles |
| Scale Factor | the ratio used to enlarge or reduce similar figures |
| Proportional | two ratios that are equal |
| Ratio | a comparison of two numbers |
| Similar | same shape; different size |
| Congruent | same shape, same size |
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