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