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15 Cards in this Set

  • Front
  • Back
a letter or other symbol that represents a number or set of numbers in an expression or an equation
product of numbers and variables
a mathematical combination of numbers, variables and operations
the result of adding two numbers or quantities
the result obtained when one number is subtracted from another
the result of multiplying two numbers or variables
the result obtained from dividing one number or variable into another number or variable
a mathematical sentence stating that two expressions are equal
equal in value
Communtative Property
the mathematical rule that states that for any numbers x and y: x + y = y + x and xy=yx
Associative Property
the mathematical rule that states that the sum or product of a set of numbers is the same no matter how the numbers are grouped. (x+y)+z=x+(y+z)
Distributive Property
the mathematical rule that states that multiplying a sum by a number is the same as multiplying each addend by that number and then adding the products
Equivalent Expression
expressions that always result in the same number or have the same mathematical meaning for all replacement values of the variables.
Like Terms
terms that include the same variables raised to the same powers... like terms can be combined
Order of Operations
to find the answer to an equation, follow this four step process: 1. Do all operations ith parentheses first 2. simplify all numbers with exponents 3. multiply and divide in order from left to right 4. add or subtract in order from left to right