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# 7th STAAR

### vocab for 7th math

TermDefinition
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°.
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”.

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