SOLUTION: What are the differences of Real numbers, irrationals, rationals,integers,whole numbers and natural numbers?

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Question 499473: What are the differences of Real numbers, irrationals, rationals,integers,whole numbers and natural numbers?
Answer by MRperkins(300) About Me  (Show Source):
You can put this solution on YOUR website!
natural numbers are numbers we count with. We don't count with 0, so 0 is not included. (1,2,3,4...)
whole numbers add the 0 to the natural numbers, so (0,1,2,3,...)
Integers include negative numbers (-2,-1,0,1,2,...)
rationals can be written as a fraction of two integers a and b (-a/b, a/b...)
irrationals can not be written as a fraction. They are non repeating numbers like the square root of 2 or pi
real numbers include all rationals, irrationals and everything. They do not include square root of negative numbers though.
Hope this helps.