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75 Cards in this Set

  • Front
  • Back
Whole Numbers
zero and the counting numbers: 1,2,3,4,5,6 and so on
Inequality
a mathermatical sentence that compares two unequal expressions using symbols - less than, greater than, not equal
Place Value
the value of a digit based on its position in a number
Expanded Form
a number written as the sum of the value of it digits
4,000 + 300 + 90 + 2
Digit
any of the ten symbols
0,1,2,3,4,5,6,7,8,9
Rounding
expressing a number to the nearest ten, hundred, and thousand
Period
a group of 3 digits separated from tother digits of a number by a comma
ones, thousands, millions, billions
Word Form
a number written as words
four thousand, three hundred ninety-two
Standard Form
a number written with one digit for each place value
4,392
Equation
a number sentence with an equal sign; the amount on one side of the equal sign has the same value as the amount on the other side
Compatible Numbers
numbers that are easy to work with mentally
Decompose
breaking apart numbers into smaller parts
Estimate
an approximate rather than an exact answer
Sum/Difference
the answers in addition and subtraction
Regroup
to use 1 ten to form 10 ones; 1 hundred to form 10 tens; 1 thousand to form 10 hundreds
Product
the answer to a multiplication problem
Factors
the numbers that are multiplied to give a product
Array
an arrangement of objects or numbers in rows and columns
Multiple
the product of a whole number and any other whole number
Clustering
using numbers that are close to a rounded number to make estimation easier
Quotient
the answer to a division problem
Remainder
the number that is left after dividing
Multiplication
the operation (x) of two or more numbers, called factors, to find a product
Division
the operation of making equal groups
Dividend
the number to be divided
Divisor
a number by which another number is divided
Divisible
capable of being divided without a remainder
Prime Number
a number that has exactly two different factors, itself and 1
Composite Number
a number that has more than two factors
Improper Fraction
a fraction in which the numerator is greater than or equal to the denominator; its value is greater than or equal to 1
Equivalent Fractions
fraction that have different numerators and denominators but name the same numbers
Proper Fractions
a fraction whose numerator is smaller than its denominator
Mixed Decimal
a whole number and a decimal
Numerator
the number that tells how many equal parts are described by the fraction
Unit Fraction
the name of each equal part; it has one as the numerator
Mixed Number
a number written as a whole number and a fraction
Equivalent Decimals
decimals that name the same number
Whole Number
any of the numbers 0, 1, 2, 3, and so on
Outcome
the result of a probability experiment
Double Bar Graph
a graph in which data is compared by means of pairs of rectangular bars drawn next to each other
Probability
the chance that an event will occur
Scale
a system of marks at fixed intervals used in measurment and graphing
Data
information that is gathered
Bar Graph
a graph with bars of different lengths to show information
Tree Diagram
a diagram that shows combinations of outcomes of an event
Sample
a number of people, objects, or events chosen from a given population to represent the entire group
Elapsed Time
the amount of time that has passed
Unit
a precisely fixed quantity used to measure
Perimeter
the distance around a figure
A.M.
used to show time between midnight and noon
P.M.
used to show the time between noon and midnight
Acute Angle
an angle with a measure of less than 90 degrees
Right Angle
an angle with a measure of exactly 90 degrees
Obtuse Angle
an angle with a measure that is greater than 90 degrees
Parallel Lines
lines that are the same distance apart at all points. These lines will never intersect.
Perpendicular Lines
lines that intersect to form right angles
Intersecting Lines
lines that meet or cross at a point
Point
an exact location in space
Line
an endless collection of points along a straight path that goes on forever
Line Segment
part of a line that has 2 endpoints
Line of Symmetry
a line that divides a figure into two congruent halves that are mirror images of each other
Plane Figure
any 2-dimensional figure such as circles and polygons
Space/Solid Figure
a geometric figure with 3 dimensions
Geometry
the mathematics of the properties and relationships of points, lines, angles, surfaces, and solids
Prism
a solid that is formed by the union of all the line segments that connect corresponding points on two congruent polygons that are located in parallel planes
Pyramid
a space figure whose base is a plane figure and whose faces are triangles with a common corner
Base
the flat side of a cylinder or cone: the flat side of a polyhedron that gives the shape its name
Quadrilateral
a polygon with 4 sides
Customary System
a measurement system that measures length in inches, feet, yards, and miles; capacity in cups, pints, quarts, and gallons; weight in ounces, pounds, and tons; and temperature in degrees Fahrenheit
Metric System (SI)
a measurement system that measures length in millimeters, centimeters, meters, and kilometers; capacity in millimeters and liters; mass in grams and kilograms; and temperature in degrees Celsius
Capacity
the maximum amount that can be contained by an object; often refers to measurement of a liquid
Area
the measure, in square units, of the interior region of a 2-dimensional figure or the surface of a 3-dimensional figure
Mass
the amount of matter in an object
Length
the distance along a line or figure from one point to another
Weight
a measure of the heaviness of an object