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Math 7 2018-2019
SSC 7th Grade Math Vocabulary
Term | Definition |
---|---|
Absolute value | A number's distance from zero |
Additive inverse | What you add to a number to get zero. |
Expression | Numbers, symbols and/or operations grouped together that show the value of something |
Associative property | For all real numbers, the sum or the product is always the same, regardless of their grouping |
Circumference | the distance around a circle |
Commutative property | all real numbers can be added or multiplied in any order with out changing the answer. |
Complementary angles | two angles that add to 90 degrees |
Compound event | two or more simple events |
Constant | a fixed value (a value that does not change) |
Distributive property | a property that lets you multiply a sum or difference by multiplying each term separately and then adding or subtracting the products |
Inequality | A mathematical sentence that shows the relationship between quantities that are not equal |
Percent of change | the amount stated as a percent that a number increases or decreases |
Perpendicular lines | intersecting lines that form right angles |
Probability | the chance that something will happen - how likely it is that some event will happen |
Proportion | two ratios (or fractions) that are equal |
Rate | a ratio that compares two quantities measured in different units |
Scale | The ratio of the length in a drawing (or model) to the length of the real thing |
Similar | figures with the same shape but not necessarily the same size |
Straight angle | an angle that is exactly 180 degrees |
Supplementary angles | two angles that add to 180 degrees |
Surface area | The sum of the areas of the faces of a 3D figure. |
Vertical angles | A pair of opposite congruent angles formed by intersecting lines |
Volume | The number of cubic units needed to fill a given space |
Experimental probability | The ratio of the number of times an event actually occurs to the total number of trials performed |
Theoretical probability | The ratio of the number of ways an outcome could happen to the number possible outcomes |
Integer | whole numbers, their opposites, and zero |