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25 Cards in this Set
- Front
- Back
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algebraic expressions
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a combination of variables, numbers, and at least one operation
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evaluate
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to find a numerical value
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variable
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placeholders; represents a number in an expression or equation
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commutative property
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the order of the addends does not change the sum (addition); the order of the factors does not change the product (multiplication)
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associative property
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the way in which factors are grouped does not change the sum(addition); the way in which factors are grouped does not change the product
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identity property
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the sum of an addend and zero is the addend; the product of factor and one is the factor
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open sentence
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equations that contain variables
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coordinate system
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formed by the intersection of two number lines that meet at their zero points
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origin
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where two number lines meet on a coordinate plane
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x-axis
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the horizontal number line on a coordiante plane (system)
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y-axis
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the vertical number line on a coordinate plane (system)
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inverse operations
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operations that "undo" each other
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inequality
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a mathematical sentence that contains < or >; can be true, false, or open
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samples
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surveys of small groups
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statistics
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involves collectig, analyzing, and presenting data
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simplest form
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an expression that has no like terms and no parentheses
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sum
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answer to an addition problem
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difference
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answer to a subtraction problem
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quotient
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answer to a division problem
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data
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pieces of information
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ordererd pair
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a pair of numbers use to locate a point in the coordinate system
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like terms
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expressions that contain the same variables, such as 3ab and 7ab
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demographics
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the study of the characteristics of a population
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percent
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part of a hundred
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product
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answer to a multiplication problem
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