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7th STAAR
vocab for 7th math
| Term | Definition |
|---|---|
| Absolute value - | is the distance from zero on the number line. |
| Adjacent angles - | are a pair of angles immediately next to each other with one side in common. |
| Base - | is the number or expression in a power that is multiplied by itself. |
| Circumference - | is the distance around a circle |
| Congruent - | means the same size and shape |
| Constant of proportionality - | is the constant alue of the ratio of 2 proportional quantities (x & y) |
| Conversion - | is an exchange from one unit of measure to another. |
| Complimentary angles - | are two angles whose sum is 90°. |
| Diameter - | is the distance across the circle passing through the center. |
| Difference - | is the answer when you subtract |
| Dialation - | is a transformation that shrinks or stretches a figure. |
| Distributive property - | a(b +c) = ab +bc |
| Experimental probability - | is the results when you actually toss a coin 100 times. |
| Exponent - | in the power 75 the 5 is the exponent |
| Expression - | uses numbers, variables, and operation symbol |
| Equation - | uses numbers, variables, operation symbols, and an equal sign |
| inequality - | is a comparison of two numbers or expressions using <, >. ≤, ≥ |
| integers - | are natural numbers, their opposites, and “0”. |
| Lateral surface area - | is the total area of the surface of a 3D object EXCLUDING the bases |
| Order of Operations | PEMDAS or GEMDAS |
| Power - | is an expression using a base and an exponent |
| Probability – | `is the number of favorable outcomes divided by the total of all possible outcomes |
| Product - | `is the answer when you multiply |
| Proportion - | is an equation stating 2 ratios are equal. |
| Quotient - | is the answer when you divide |
| Radius - | is the distance from the center of the circle to the edge |
| Rate - | is a ratio of 2 measures that have different units |
| Ratio - | is a comparison of numbers or variables that can be written in fraction form. |
| Rational number - | is a ratio of 2 intergers where the denominator ≠ “0”. |
| Reciproccal - | are two numbers whose product is 1 |
| Reflection - | is a mirror view |
| Similar figures - | is the ratio of corresponding side lengths that are proportional. |
| Straight angle - | is an angle that measures 180°. |
| Sum - | is the answer when you add. |
| Supplementary angles - | are two angles whose sum is 180°. |
| Term - | is one part of an expression that includes a number, a variable, or product of both. |
| Theoretical probability - | is the mathematically calculated chances of a specific event occurring. |
| Total surface area - | is the total area of the surface of a 3D object. |
| Translation - | is to move a figure in any direction without rotation. |
| Transformation - | is the change in position or size. |
| Unit rate - | is a rate that has a denominator of 1 unit |
| Variable - | is a letter used to represent a number in equations or expressions. |
| Vertical angles - | are pair of angles directly opposite of each other formed by the intersection of straight lines. |
| Whole numbers - | are any natural number and “0”. |