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167 Cards in this Set
- Front
- Back
period
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Each group of three digits separated by commas in a multidigit number
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expression
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A part of a number sentence that combines numbers and operation signs but does not have an equal sign
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millions
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The period after thousands
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variable
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A letter or symbol that stands for a number or numbers
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benchmark
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A known number of things that helps you understand the size or amount of a different number of things
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Commutative Property of Addition
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The property that states that when the order of two addends is changed, the sum is the same
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round
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To replace a number with another number that tells about how many or how much
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Associative Property of Addition
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The property that states that you can group addends in different ways and still get the same sum
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Identity Property of Addition
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The property that states that when you add zero to any number, the sum is that number
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century
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A measure of time equal to 100 years
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equation
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A number sentence which shows that two quantities are equal
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decade
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A measure of time equal to 10 years
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second
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A small unit of time; 60 seconds = 1 minute
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survey
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A method of gathering information to record data
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elapsed time
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The time that passes from the start of an activity to the end of that activity
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frequency
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The number of times an event ocurs
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cumulative frequency
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A running total of items being counted
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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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mean
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The number found by dividing the sum of the set of numbers by the number of addends
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range
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The difference between the greatest number and the least number in a set of data
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median
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The middle number in an ordered set of data
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outlier
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A value separated from the rest of the data
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mode
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The number (s) or item(s)that occur most often in a set of data
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stem - and - leaf plot
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A data display that shows groups of data arranged by place value
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stem
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A tens digit in a stem-and leaf plot
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double-bar graph
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A graph used to compare similar kinds of data
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leaf
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A ones digit in a stem-leaf plot
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trends
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On a graph, areas where the data increase, decrease, or stay the same over time
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scale
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The numbers placed at fixed distances on a graph to help label the graph
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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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interval
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The difference between two numbers on the sale of a graph
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circle graph
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A graph in the shape of a circle that shows data as a whole made up of different parts
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inverse operations
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Opposite operations that undo each other, such as addition and subtraction or multiplication and division
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Zero Property of Multiplication
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The property that states that the product of 0 and any number is 0
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fact family
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A set of related multiplication and division or addition and subtaction equations
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Commutative Property of Multiplication
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The property that states that when the order of two factors is changed, the product is the same
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multiple
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The product of a given whole number and another whole number
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Associative Property of Multiplication
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The property that states that you can group factors in different ways and still get the same product
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Identity Property of Multiplication
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The property that states that the product of any number and 1 is that number
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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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compatible numbers
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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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Distributive Property
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The property that states that multiplying a sum by a number is the same as multiplying each addend b the number and then adding the products
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prime number
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A number that has only two factors: 1 and itself
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multistep problem
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A problem requiring more than one step to solve
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composite number
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A whole number that has more than two factors
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remainder
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The amount left over when a number cannot be divided evenly
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square number
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The product of a number and itself
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square root
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One of two equal factors of a number
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ray
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a part of a line that has one endpoint and continues without end in one direction
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point
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An exact location in space
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plane
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A flat surface that extends without end in all dirterctions
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line
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A straight path of points in a plane that continues without end in both directions with no endpoints
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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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line segment
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A part of a line that includes two points called endpoints and all the points between them
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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
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protractor
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A tool for measuring the size of an angle
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obtuse angle
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An angle that has a measure greater than 90 and less than 180
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degree ( )
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A unit for measuring angles or temperatures
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straight angle
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An angle that has a measure of 180
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right angle
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An angle that forms a square corner and has a measure of 90
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intersecting lines
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Lines that cross each other at exactly one point
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acute angle
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An angle that has a measure greater than 0 and less than 90
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parallel lines
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Lines in the same plane that never intersect and are always the same distance apart
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perpendicular lines
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Two lines that intersect to form four right angles
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quadrilateral
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A polygon with four sides
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polygon
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A closed plane figure with straight sides, each of which is a line segment
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pentagon
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A polygon with five sides
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regular polygon
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A polygon whose sides are all the same length
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hexagon
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A polygon with six sides
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triangle
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A polygon with three sides
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octagon
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A polygon with eight sides
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triangular pyramid
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A pyramid that has a triangular base and three triangular faces
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net
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A two-dimensional pattern that can be folded to make a three-dimensional figue
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edge
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The line segment where two or more faces of a solid figure meet
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volume
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The measure of the amount of space a solid figure occupies
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face
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A polygon that is a flat surface of a solid figure
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cubic unit
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A unit of volume with dimensions of 1 unit * 1 unit * 1 unit
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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 at which three or more edges meet in a solid figure
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equivalent decimals
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Two or more decimals that name the same amount
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area
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The number of square units needed to cover a surface
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perimeter
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The distance around a figure
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two-dimensional
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Measured in two directions, such as length and width
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formula
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A set of symbols that expresses a mathematical rule
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three-dimensional
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Mesured in three directions, such as length, width, and height
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circumference
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The distance around a circle
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triangular prism
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A solid figure that has two triangular bases and three rectangular faces
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milliliter (mL)
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A metric unit for measuring capacity; 1,000 milliliters = 1 liter
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kilogram (kg)
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A metric unit for measuring mass; 1 kilogram = 1,000 grams
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liter (L)
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A metric unit for measuring capacity; 1 liter - 1,000 milliliters
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ounce (oz)
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A customary unit for measuring weight; 16 of these are equivalent to 1 pound
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pound (lb)
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A customary unit for measuring weight that is equivalent to 16 ounces
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ton (T)
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A customary unit for measuring weight that is equivalent to 2,000 pounds
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millimeter (mm)
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A metric unit for measuring length or distance; 1,000 millimeters = 1 meter
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centimeter (cm)
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A metric unit for measuring length or distance; 100 centimeters = 1 meter
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decimeter (dm)
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A metric unit for measuring length or distance; 10 decimeters = 1 meters
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meter (m)
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A metric unit for measuring length or distance; 1 meter = 100 centimeters
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kilometer (km)
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A metric unit for measuring length or distance; 1 kilometer = 1,000 meters
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mile (mi)
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A customary unit for measuring length or distance that is equivalent to 5,280 feet
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cup (c)
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A customary unit for measuring capacity that is equivalent to 8 ounces
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capacity
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The amount a container can hold when filled
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pint (pt)
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A customary unit for measuring capacity that is equivalent to 2 cups
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teaspoon (tsp)
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A customary unit for measuring cpacity; 3 of these are equivalent to 1 tablespoon
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quart (qt)
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A customary unit of measuring capacity that is equivalent to 2 pints
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tablespoon (tbsp)
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A customary unit for measuring capacity that is equivalent to 3 teaspoons
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gallon (gal)
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A customary unit for measuring capacity that is equivalent to 4 quarts
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unlikely
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Having a less that even chance of ahppening
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linear units
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Units for measuring length, width, height, or distance
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equally likely
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Having the same chance of happening
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inch (in.)
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A customary unit for measuring length or distance; 12 of these are equivalent to 1 foot
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mathematical 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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foot (ft)
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A customary unit for measuring length or distance that is equivalent to 12 inches
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tree diagram
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An organized list that shows all possible outcomes of an event
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yard (yd)
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A customary unit for measuring length or distance that is equivalent to 3 feet
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simplest form
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The state a fraction is in when 1 is the only number that can divide evenly into both the numerator and denominator
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outcome
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A possible result of an experiment
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mixed number
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An amount given as a whole number and a fraction
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event
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One outcome or a combination of outcomes in an experiment
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like fractions
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Fractions with the same denominator
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predict
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To make a reasonable guess about what will happen
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unlike fractions
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Fractions with different denominators
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likely
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Having a greater than even chance of happening
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x-axis
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The horizontal line on a coordinate grid, or plane
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y-axis
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Th vertical line on a coordinate grid , or plane
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fraction
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A number that names a part of a whole or part of a group
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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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x-coordinate
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The first number in an ordered pair that tells how far to move horizontally
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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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y-coordinate
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The second number in an ordered pair that tells how far to move vertically
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equivalent fractions
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Two or more fractions that name the same amount
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equilateral triangle
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A triangle with three equal, or congruent, sides
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acute triangle
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A triangle with three acute angles
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isosceles triangle
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A triangle with two equal, or congruent, sides
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obtuse triangle
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A triangle with one obtuse angle
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scalene triangle
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A triangle with no equal, or cobgruent, sides
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parallelogram
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A quadrilateral whose opposite sides are parallel and equal, or congruent
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right triangle
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A triangle with one right angle
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rhombus
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A parallelogram with four equal, or congruent, sides
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trapezoid
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A quadrilateral with exactly one pair of parallel sides
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chord
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A line segment that has endpoints on a circle
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Venn diagram
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A diagram that shows relationships among sets of things
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diameter
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A line segment that passes through the center of a circle and has endpoints on the circle
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circle
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A closed figure made up of points that are all the same distance from the center
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radius
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A line segment that has one endpoint at the center of a circle and the other endpoint on the circle
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center
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The point inside a circle that is the same distance from each point on the circle
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compass
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A tool used to construct circles
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line symmetry
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What a figure has if it can be folded about a line so that its two parts match exactly
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transformation
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A movement of a figure to a new position by a translation, reflection, or rotation
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rotational symmetry
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What a figure has if it can be turned about a central point and still look the same in at least two positions
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translation
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A movement of a figure to a new position along a straight line
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congruent
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Having the same size and shape
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reflection
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A movement of a figure to a new position by flipping the figure over a line
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similar
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Having the same shape but possibly different in size
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rotation
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A movement of a figure to a new position by rotating the figure around a point
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tessellation
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A repeating pattern of closed figures that covers a surface with no gaps and no overlaps
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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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degree
Fahrenheit ( F) |
A standard unit for measuring temperature
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opposites
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Numbers that are the same distance from zero but in opposite directions from zero
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degree Celsius ( C)
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A metric unit for measuring temperature
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inequality
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A mathemmatical sentence that shows that two expressions do not represent the same quantity
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negative numbers
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All numbers to the left of zero on the number line
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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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gram (g)
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A metric unit for measuring mass; 1.000 grams = 1 kilogram
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thousandth
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One of one thousand equal parts
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mass
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The amount of matter in an object
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decimal point
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A symbol used to separate dollars from cents in money and to separate the ones and the tenths places in a decimal
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decimal
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A number with one or more digits to the right of the decimal point
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