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### 39 Cards in this Set

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 variable a letter that is used to represent one or more numbers. scientific notation a use of positive expnants to write large numbers and negative exponants to write small numbers prime factorization an expression showing a positive integer as the product of prime factors associative property (a+b)+c= a+(b+c) or (a*b)*c=a*(b*c) proper fraction positive fraction whos numerator is less than its denominatior distributive property a*(b+c)=(a*b)+(a*c) denominator any number below the fraction bar variable expression an expression that contains a variable like terms two terms are called this if their variable parts ar the same ex. n and 11n cube the third power absolute value the distance from 0 to the graph of a number on the number line numerical coefficiant the 3 in 3x composite numbers a number that has more than two factors origin 0 on the number line cross multiplying a method for solving and checking proportions order or operations parenthases, exponants, muliplication/division, addition/subtraction. (PEMDAS) inequality a mathematical sentence formed by placing an inequality sign between two expressions power a product in which each factor is the same ex. 2*2*2*2=16 exponant a number indicating how many times the base is used as a factor identity property of multiplication a*1=a, a/1=a, 1*a=a, a/a=1 common fraction a fraction whose numerator and denominator are both integers factor when two or more numbers are muliplied together, each number is called a factor. ec. 3*5=15 3 and 5 are factors of 15 numerical expression an expression that names a number ex. 2+3 commutative property a+b=b+a or a*b=b*a numerator any number above the fraction bar square the second power improper fraction a fraction whose denominator is less than its numerator zero property of multiplication a*0=0, 0*a=0, 0/a=0 mixed number a number consistiong of a whole number and a fraction integers the whole numbers and their opposite form a set of numbers ex. -3,-2,-1,0,1,2,3 irrational numbers numbers that do not terminate or repeat zero property or addition a+0=a, a-0=a, 0+a=a, a-a=0 least common denominator the least common multiple of two or more denominators prime number a number with exactly two factors relatively prime two numbers have no other factor than 1 (fraction can't be reduced) ex. 9 and 10 greatest common factor the greatest whole number that is a factor of each number rational number a number which can be written as p/q and p and q are integers and q does not equal 0 equation a sentence that states that two expression name the same number percent a ratio of a number to 100, shown by the symbol %