Term

Definition
the set of natural numbers and zero. W=(0,1,2,3,4,5...) 


Term
Natural Numbers and Counting Numbers 

Definition
the set of numbers used in counting 


Term

Definition
whole numbers and their opposites 


Term

Definition
whole numbers and their opposites J=(...3,2,1,0,1,2,3...) 


Term

Definition
any number that can be expressed as the quotient of 2 integers. Q=Rational Numbers It is impossible to represent the set of rationals using a graph or using the roster method. The rational numbers include al whole numbers, integers, decimals, and fractions. 


Term

Definition
cannot be expressed as the ratio of 2 integers. Ex pi and the square root of 2 rationals and irrationals=reals 


Term

Definition
members cannot be counted. Ex.:Q,N,W,J,reals 


Term

Definition
members can be counted. Ex.: (the even numbers between 20 and 50) 


Term

Definition
can be used to show the relatonship among sets of numbers. 

