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81 Cards in this Set
- Front
- Back
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Angle
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A figure formed by two line segments or rays that share the same endpoint
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Acute Triangle
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A triangle with three acute angles
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Acute Angle
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An angle that has a measure less than a right angle (less than 90 degrees)
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Composite Number
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A number that has more than two factors
12-1,3,4,12 |
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Congruent
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Having the same size and shape
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Compatible Numbers
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Nearby numbers that are easy to compute mentally
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Divisible
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Capable of being divided so that the quotient is a whole number and the remainder is zero
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Decimal
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A number with one or more digits to the right of the decimal point
875635935(.)525325 |
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Factor Tree
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A diagram that shows the prime factors of a number
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Double-bar Graph
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A graph used to compare similar kinds of data
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Denominator
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The number below the bar in a fraction that tells how many equal parts are in the whole or group
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Equation
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A number sentence which states that two amounts are equal
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Equilateral Triangle
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A triangle with three congruent sides
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Expression
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A part of a number sentence that has numbers and operation signs but does not have an equal sign
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Face
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A polygon that is a flat surface of a solid figure
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Event
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One outcome or a combination of outcomes in an experiment
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Equivalent Fractions
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Two or more fractions that name the same amount Example: 1/2 = 2/4
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Fraction
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A number that names a part of a whole
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Frequency
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The number of times a response occurs
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Hexagon
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A polygon with six sides and six angles
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Gallon (gal)
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A customary unit for measuring capacity; equivalent to 4 quarts or 8 pints
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Leaf
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A ones digit in a stem-and-leaf plot
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Intersecting lines
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Lines that cross each other at exactly one point
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Interval
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The distance between two numbers on the scale of a graph
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Like Fractions
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Fractions with the same denominator
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Inverse Operations
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Operations that undo each other, like addition and subtraction, or multiplication and division
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Isosceles Triangle
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A triangle with only two conguent sides
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Line
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A straight path in a plane, extending in both directions with no endpoints
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Line Plot
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A graph that shows the frequency of data along a number line
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Line Graph
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A graph that uses a line to show how data change over a period of time
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Line Segment
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A part of a line that has two endpoints
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Meter (m)
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A unit of length in the metric system; equivalent to 100 centimeters
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Negative Numbers
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All the numbers to the left of zero on the number line
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Mathmatical Probability
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A comparison of the number of favorable outcomes to the number of possible outcomes of an event
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Median
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The middle number in an ordered set of data
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Mean
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The average of a set of numbers, found by dividing the sum of the set by the number of addends
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Milliliter (mL)
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A unit of capacity in the metric system; 1,000 of them equals 1 liter
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Mode
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The number or item that occurs most often in a set of data
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Multiple
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The product of a given whole number and another whole number
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Obtuse Triangle
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A triangle with one obtuse angle
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Numerator
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The number above the bar in a fraction that tells how many parts of the whole or group are being considered
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Obtuse Angle
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An angle that has a measure greater than a right angle (greater than 90 degrees)
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Octagon
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A polygon with eight sides and eight angles
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Ounce (oz)
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A customary unit used for measuring weight; 16 of them equals 1 pound
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Outcomes
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The possible results of an experiment
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Opposites
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Numbers on the number line which are the same distance from 0
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Ordered Pair
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A pair of numbers used to locate a point on a coordinate grid. The first number tells how far to move horizontally, and the second number tells how far to move vertically
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Order of Operations
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Rules for performing operations in expressions with more than one operation; do the operations inside parentheses, then multiply and divide from left to right, then add and subtract from left to right
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Parallel Lines
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Lines that never intersect
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Positive Numbers
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All numbers to the right of zero on the number line
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Parallelogram
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A quadrilateral whose opposite sides are parallel and congruent
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Pentagon
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A polygon with fives sides and five angles
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Perimeter
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The distance around a figure
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Perpendicular Lines
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Lines that intersect to form four right angles
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Quadrilateral
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A polygon with four sides and four angles
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Point
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A location on an object or in space
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Plane
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A flat surface that extends without end in all directions
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Prime Factor
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A factor that is a prime number
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Prime Number
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A number that has only two factors: 1 and itself
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Polygon
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A closed plane figure with straight sides; Each side is a line segment
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Stem-and-leaf Plot
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A table that shows groups of data arranged by place value
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Simplest Form
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A fraction is in this form when 1 is the only numer that can divide evenly into the numerator and the denominator
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Scalene Triangle
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A type of triangle with no congruent sides
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Similar
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Having the same shape as something else but possible different in size
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Right Angle
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An angle that forms a square corner and has a measure of 90 degrees
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Regular Polygon
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A polygon that has sides that are the same length
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Rhombus
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A parallelogram with four congruent sides and with opposite angles that are congruent
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Translation
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A movement of a figure to a new position without turning or flipping it
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Ray
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A part of a line; begins at one endpoint and goes on forever in one direction
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Square Number
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The product of a number and itself
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Range
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The difference between the greatest and the least values in a set of data
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Right Triangle
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A triangle with one right angle
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Vertex
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The point at which two rays of an angle or two or more line segments meet in a plane figure, or where three or more sides meet in a solid figure
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Scale
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A series of numbers placed at fixed distances on a graph to help label the graph
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Stem
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A tens digit in a stem-and-leaf plot
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Straight Angle
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An angle that has a measure of 180 degrees
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Unlike Fractions
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Fractions with different denominators
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Variable
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A letter or symbol that stands for any number
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Volume
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The measure of the space a solid figure occupies
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Unlikely
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Having a less than even chance of happening
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Venn Diagram
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A diagram that shows relationships among sets of things
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