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104 terms

Math Midterm

Notecards on the study guide
STUDY
PLAY
Addends
2 or more numbers that are added
Sum
The result of addition
Difference
The result of subtraction
Subtrahend
A number that is being subtracted
Minuend
A number from which another number is being subtracted
Inverse operation
Operations that undo one another
Fact family
A group of 3 numbers related by addition and subtraction or multiplication or division
Factors
2 or more numbers that are multiplied
Product
The result of multiplication
Quotient
The result of division
Divisor
The number by which another number is divided
Dividend
A number that is divided
Remainder
An amount left after division
Fraction
Numbers that name parts of a whole
Denominator
The bottom number in a fraction
Numerator
The top number in a fraction
Line
Straight collection of points extending in opposite directions without end
Ray
A part of a line that begins at a point and continues without end in one direction
Segment
A part of a line with 2 distinct endpoints
Perimeter
The distance around a shape
Counting numbers
1,2,3,4,5,6...
Whole numbers
0,1,2,3,4,5...
Negative numbers
numbers less than 0
Sequence
A list of numbers arranged according to a certain rule
Terms
Numbers in a sequence
Even numbers
Numbers that can be divided by 2 without a remainder
Odd numbers
Numbers that can't be divided by 2 without a remainder
Place value
The value of a digit based on its position within a number
Positive Numbers
Numbers greater than 0
Opposites
2 numbers whose sum is 0
Integers
...-3,-2,-1,0,1,2,3...
Estimate
To determine an approximate value
Mixed number
A whole numbers and a fraction together
Average
The number found when the sum of 2 or more numbers are divided by the number of addends
Prime numbers
Numbers whose only 2 factors are itself and 1
Factors
A whole number that divides another whole number without a remainder
GCF
The largest number that is a factor of 2 or more given numbers
Improper fraction
A fraction with a numerator that is equal to or greater than the denominator
Ratio
A comparison of 2 numbers by division
Multiples
Products of a selected counting number and other counting numbers
Reduce
Rewrite a fraction in lowest terms
Circumference
The distance around a circle
Diameter
The distance across a circle through its center
Radius
The distance from the center of the circle to a point on the outside
Compass
A tool used to draw circles
Concentric circles
2 or more circles with a common center
Circle
A closed, curved shape in which all points on the shape are the same distance from its center
Plane
A flat surface that has no boundaries
Parallel lines
Lines in the same plane that don't intersect
Intersect
2 lines that share a point
Perpendicular lines
2 lines that intersect at right angles
Oblique lines
Lines that are in the same plane that are neither parallel nor perpendicular
Angles
The opening that is formed When2 lines, rays, or segments meet
Vertex
A point of an angle or polygon where 2 or more lines rays or segments meet
Right angle
An angle whose opening forms a square corner
Acute angle
An angle whose opening is smaller than a right angles
Obtuse angle
An angle whose opening is larger than a right angle and smaller than a straight line
LCM
The smallest whole number that is a multiple of 2 or more given
numbers
Reciprocal
2 numbers whose product is 1
Term
A number that serves as a numerator or denominator
Degrees
Units for measuring angles
Protractor
A tool used to measure and draw angles
Area
The number of square units needed to cover a surface
Expanded Notation
A way of writing of writing a number as the sum of the products of the digits and the place values of the digits and the place value of the digits
A.M.
The period of time from midnight to just before noon
P.M.
The period of time from noon to just before midnight
PI
The number of diameters equal to the circumference of a circle
Percent
A fraction with a denominator of 100 expressed as a percent sign
Decimal point
The symbol in a decimal number used as a reference for place value
Decimal place
Places to the right of the decimal pint
Exponent
The upper number in an exponential expression
Base
The lower number in an exponential expression
Square root
One of 2 factors of a number
Perfect square
The product when a whole number is multiplied by itself
Circle graphs
A method of displaying data often using percentages
Quantitative
Expressed in or relating to quantities or numbers
Qualitative
Expressed in or relating to categories rather than quantities or numbers
Sales tax
The fee charged on the sale of an item and based upon the item's purchase
Equivalent fractions
Different fractions that name the same amount
Sector
A region bordered by part of a circle and 2 radii
Mean
The average of a list of numbers
Median
The middle number of an ordered list of numbers
Mode
The number or numbers that appears most often in a list of data
Bimodal
Having 2 or more modes
Range
The difference between the largest and smallest numbers on the list
Common denominators
A number that is a denominator of 2 or more fractions
Probability
The ratio of favorable outcomes to all possible outcomes
Chance
A way of expressing the like hood of an event as a percentage
Triangle
3 sided polygon
Quadrilateral
4 sided polygon
Pentagon
5 sided polygon
Hexagon
6 sided polygon
Octagon
8 sided polygon
Polygon
A closed, flat shape with straight sides
Regular polygon
A polygon in which all sides have equal length and all angels have equal measure
Congruent
Having the same size and shape
Side
A line segment hat is part of a polygon
Commutative prop. of addition
Changing the order of the addends does not change the sum
Identity prop. of addition
The sum of any number and 0 is the initial number
Commutative prop. of multiplication
Changing the order of the factors does not change the sum
Identity prop. of multiplication
The product of any number and 1 is equal to the initial number
Zero prop. of multiplication
Any number times 0 is 0
Associative prop. of addition
The grouping of the addends does not change the sum
Associative prop. of multiplication
The grouping of the factors does not change the product