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70 Cards in this Set
- Front
- Back
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absolute value
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a numbers distance from zero
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variable
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letter that represents a number
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variable expression
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math phrase that uses variables, numbers, and operation symbols
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order of operations
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PEMDAS
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evaluate
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replacing variables with numbers
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opposites
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numbers that are same distance from zero but in different directions
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integers
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whole numbers and their opposites
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conjecture
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conclusion reached by inductive reasoning, a reasoned decision
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counterexample
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an example that proves a conjecture false
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coordinate plane
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the graphd formed by the intersection of two number lines
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x axis
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the horizontal line of a coordinate plane
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y axis
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the vertical line of a coordinate plane
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quadrants
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four areas of a coordinate plane
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origin
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point where the x axis and y axis meet (0,0)
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ordered pair
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coordinates (x,y) that name a points location
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additive identity
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adding zero to a number
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multiplicative identity
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multiplying a number by 1
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term
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number, variable, or product of a number and variable
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constant
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term that has no variable
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like terms
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terms that have identical variables
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coefficient
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the number before a variable
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equation
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mathematical sentence showing two expressions are equal, has equal sign
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open sentence
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an equation with one or more variables
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solution of an equation
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value of variable that makes equation true
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inverse operations
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mathematical operations that are opposites of one another
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inequality
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math sentence that contains less than, greater than, etc.
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compatible numbers
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numbers that are easy to divide mentally
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measures of central tendency
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mean, median, and mode of collection of data
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mean
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average, sum of all numbers divided by total amount of numbers
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median
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middle value when ordered least to greatest
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mode
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data value that occurs the most often
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range
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difference between biggest value and smallest value
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outlier
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number that does not fit in the group of numbers, too big or too small
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formula
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equation that shows a relationship between quantities that are represented by variables
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perimeter
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P = 2(length) + 2(width)
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exponent
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shows how many times a base is to be repeatedly multiplied
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base
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the number being multiplied repeatedly in a power
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power
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exponent and base
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prime number
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number with only two factors, 1 and itself
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composite number
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number with more than two factors
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prime factorization
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using a factor tree to break a number down to its prime factors
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GCF
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greatest common factor, biggest number that divides two numbers
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venn diagram
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use circles to represent similarities and differences
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equivalent fractions
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fractions that name the same amount of a whole
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simplest form
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fraction that has a GCF of 1 between numerator and denominator
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rational number
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number that can be written as a fraction in the form "a/b"
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scientific notation
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using powers of 10 to write very large or very small numbers
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standard notation
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writing the common form of a number
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multiple
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a number is the product of that number and any nonzero whole number
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terminating decimal
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the divison ends with a remainder of zero
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repeating decimal
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the same black of digits repeats infinitely many times
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reciprocals
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1/2 its reciprocal 2/1 or 2
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dimensional analysis
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the use of conversion factors to change from one unit of measure
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ratio
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a comparison of two quantities by division
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rate
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a ratio that compares quantities in different units
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unit rate
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a rate that has a denominator of 1
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proportion
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an equality of two ratios
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cross products
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the proportion a/b=c/d
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similar figures
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the same shape, but not necessarily the same size
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indirect measurement
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the use of similar figures to compute distances that are difficult to measure directly
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scale drawing
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an enlarged or reduced drawing that is similar to an actual object or place
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outcomes
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the possible results of an action
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event
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any outcome or group of outcomes
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impossible event
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less likely
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certain event
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more likely
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odds
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describe the likelihood of an event
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percent
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a ratio that compares a number to 100
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commission
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sales jobs pay an amount based on how much you sell
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percent of change
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the percent a quantity increases or decreases from its original amount
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markup
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amount of increase
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