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81 Cards in this Set

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