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# Delk Grade 5 Vocab M

### Vocabulary

TermDefinition
Whole Numbers The numbers numerical numbers starting with 0, 1......
Difference The distance between 2 numbers on a number line, the answer to a subtraction equation
Factor One of two or more numbers multiplied together to make a product
Quotient The answer in a division equation
Divisor The number that divided into another number
Dividend The number being divided
Regrouping An equal exchange from one place to the next
Numerator The number above the line in a fraction; the number that tells how many equal parts are described by the fraction
Denominator The number below the line in a fraction; it tells the number of equal parts into which a whole is divided.
Mixed Number A number with an integer part and fraction part
Improper Fraction A fraction with a value greater than 1 that is not written as a mixed number
Equivalent Fraction Fractions that represent an equal amount
Greatest Common (GCF) The largest common number that divides evenly into two or more numbers
Simplest Form A fraction whose numerator and denominator have no common factor greater than one
Least Common Denominator or Least Common Multiple The smallest common multiple of the denominators of two or more fractions
Divisible Capable of being divided by another number without a remainder
Factors A number that is multiplied by another number to find a product
Multiple The product of that number and any other whole number
Prime Number A number with exactly two factors
Composite Number A number with more than two factors
Divisiblitily Rules Rules that determine when a number is divisible by another number
Array An arrangement of objects, picutres or numbers in colums and rows.
Even Any number ending in 0,2,4,6, or 8; divisible by two
Odd Any number ending in 1,3,5,7, or 9
Quotient The answer in a divison equation
Parentheses A pair of grouping symbols used to enclose sections of a mathematical expression
Order of Operations When an equation has more than one operation, we use a specific order to solve the problem
Expression A representation of a quantity. It may be made up of numbers, variables, computational symbols, and grouping symbols.
Simplify To simplify means that all possible computation has been performed on the expression
Perimeter A measure of the path or distance a plane figure
Area The surface included within a plane figure
Volume Measurement of a three-dimensiional figure of capacity
Length The distance between two points along a line
Mass The amount of matter in an object
Liquid Volume Capacity
Circle A set of points on a flat surface with every point an equal distance from a given point called the center
Circumference Distance around or perimeter of a circle
Chord Line segment connecting any two points any two points on a circle
Diameter A special chord that goes throught the center of a circle
Radius A line segment joining the center of a circle to any point on the circle
Elapsed time The amount of time that has passed between two given times
Protractor An instrument used in measuring or drawing angles
Degree A measure for angles
Angle Two line segments or rays that meet at a common endpoint
Vertex A point where two or more straight lines meet
Right Angle An angle which is equal to 90 degrees
Straight Angle An angle that looks like a straight line; measures 180 degrees
Acute Angle An angle which measures less than 90 degrees
Obtuse Angle An angle which measures more than 90 degrees
Triangle Polygon with 3 sides and 3 angles
Right Triangle A triangle that contains one right angle
Obtuse Triangle A triangle that has one obtuse angle
Acute Triangle A triangle that has three acute angles
Scalene Triangle A triangle that has no congruent sides
Isosceles Triangle A triangle that contains two congruent sides
Equilateral Triangle A triangle in which all sides are congruent
Transformation A change in the position of a shape without changing its appearance.
Reflection An image of an object when it is viewed in a mirror
Rotation The movement of an object about an axis through some angle
Translation The shifting of the position of a shape, generally horizontally or vertically, without rotation or reflection
Probability The chance of an event occurring
Likelihood The probability of an event occurring
Outcome Result of an experiment
Impossible An event is impossible if it has a probability of 0
Unlikely Not likely to occur
As likely as Equally likely
Equally likely Outcomes that have the same probability
Likely Seeming like certainty
Certain An event is certain to occur if it has a probability of 1
Sample Space All possible outcomes of an experiment
Mean Sum of the values in a data set divided by the number of values; average
Median Middle value of a data set in numerical order
Mode Value piece of data that occurs most frequently in the data set
Range The spread of a set of data; variation
Numberical Expressed as numbers
Pattern Sequence that follows a rule or rules to repeat or change
Variable A letter or symbol representing a varying quatity
Equation A mathematical sentence which contains one or more vaiable and an = sign
Created by: Ms. Delk

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