Natural Numbers:
Natural Numbers are 1,2,3,4,5,................
Whole Numbers:
Whole Numbers are 0,1,2,3,4,5,...............
Positive Numbers:
Positive numbers are, 1,2 ,3 ,4 ,5.................
Negative Numbers:
Negative numbers are, ............3, 2, 1. They are read as negative three, negative two, negative one.
Integers:
A set containing the positive numbers, 1, 2, 3, 4, ...., and negative numbers,............3, 2, 1, together with zero is called a set of integers.
In other words, Integers are defined as set of whole numbers and their opposites.
Z = {..., 3, 2, 1, 0, 1, 2, 3, ...}
{1, 2, 3, . . .} is the set of positive integers
{ . . . 3, 2, 1} is the set of negative integers
Zero is not positive nor negative, but is both.
A positive integer has a (+) or addition sign in front of the number and looks like ( 5 or (+ 5). Also note that a positive integer doesn't need a sign.
A negative integer has a () or negative sign in front of the number and looks like ( 7). A negative integer can be thought of as owing someone something. Think of it as (8) means owing someone 8 items or things.
Zero in neither positive or negative and is always larger than a negative integer.
Positive integers are always larger than zero and any negative number.
The larger a positive integer is, the bigger it is. Therefore a +7 is greater than a +5, written another way +7 > +5.
The larger a negative integer the smaller is its value. Therefore, (6) < (5).
Directions: Answer the following questions. Write your own examples of positive and negative integer problems.
